2020 |
Veziroglu, Salih; Obermann, Anna-Lena; Ullrich, Marie; Hussain, Majid; Kamp, Marius; Kienle, Lorenz; Leißner, Till; Rubahn, Horst-Günter; Polonskyi, Oleksandr; Strunskus, Thomas; Fiutowski, Jacek; Es-Souni, Mohammed; Adam, Jost; Faupel, Franz; Aktas, Oral Cenk Photo-deposition of Au Nanoclusters for Enhanced Photocatalytic Dye Degradation over TiO2 Thin Film Journal Article ACS Applied Materials & Interfaces, 0 (ja), 2020. @article{Veziroglu2020, title = {Photo-deposition of Au Nanoclusters for Enhanced Photocatalytic Dye Degradation over TiO2 Thin Film}, author = {Salih Veziroglu and Anna-Lena Obermann and Marie Ullrich and Majid Hussain and Marius Kamp and Lorenz Kienle and Till Leißner and Horst-Günter Rubahn and Oleksandr Polonskyi and Thomas Strunskus and Jacek Fiutowski and Mohammed Es-Souni and Jost Adam and Franz Faupel and Oral Cenk Aktas}, doi = {10.1021/acsami.9b18817}, year = {2020}, date = {2020-01-01}, journal = {ACS Applied Materials & Interfaces}, volume = {0}, number = {ja}, abstract = {Au nanoparticles (NPs) decorated heterogeneous TiO2 catalysts are known to be effective in the degradation of various organic pollutants. The photocatalytic performance of such Au-TiO2 structures remarkably depends on size, morphology and surface coverage of Au NPs decorating TiO2. Here we propose an effective way of preparing highly active Au nanoclusters (NCs) decorated TiO2 thin film by a novel photo-deposition method. By altering the solvent type and as well as the illumination time we achieved well-controlled surface coverage of TiO2 by Au NCs, which directly influences the photocatalytic performance. Here Au NCs coverage affects both the electron store capacity and the optical absorption of the hybrid Au-TiO2 system. At low surface coverage, 19.2-29.5 % Au NCs seem to enhance significantly the optical adsorption of TiO2 at UV wavelengths therefore leads to a higher photocatalytic performance., author+an = 7=highlight}, keywords = {}, pubstate = {published}, tppubtype = {article} } Au nanoparticles (NPs) decorated heterogeneous TiO2 catalysts are known to be effective in the degradation of various organic pollutants. The photocatalytic performance of such Au-TiO2 structures remarkably depends on size, morphology and surface coverage of Au NPs decorating TiO2. Here we propose an effective way of preparing highly active Au nanoclusters (NCs) decorated TiO2 thin film by a novel photo-deposition method. By altering the solvent type and as well as the illumination time we achieved well-controlled surface coverage of TiO2 by Au NCs, which directly influences the photocatalytic performance. Here Au NCs coverage affects both the electron store capacity and the optical absorption of the hybrid Au-TiO2 system. At low surface coverage, 19.2-29.5 % Au NCs seem to enhance significantly the optical adsorption of TiO2 at UV wavelengths therefore leads to a higher photocatalytic performance., author+an = 7=highlight |
Cielecki, Paweł Piotr; Leißner, Till; Ahmadpour, Mehrad; Madsen, Morten; Rubahn, Horst-Günter; Fiutowski, Jacek; Kjelstrup-Hansen, Jakob Photo-induced and electrical degradation of organic field-effect transistors Journal Article Organic Electronics, pp. 105717, 2020, ISSN: 1566-1199. @article{Cielecki2020, title = {Photo-induced and electrical degradation of organic field-effect transistors}, author = {Paweł Piotr Cielecki and Till Leißner and Mehrad Ahmadpour and Morten Madsen and Horst-Günter Rubahn and Jacek Fiutowski and Jakob Kjelstrup-Hansen}, url = {http://www.sciencedirect.com/science/article/pii/S1566119920301038}, doi = {10.1016/j.orgel.2020.105717}, issn = {1566-1199}, year = {2020}, date = {2020-01-01}, journal = {Organic Electronics}, pages = {105717}, abstract = {The field of organic field-effect transistors (OFETs) has matured over the past two decades and devices with charge carrier mobilities of several cm2/Vs have been demonstrated. Nevertheless, to enter commercial products, the operational stability of OFET technology also needs to be addressed. Herein, two potential degradation mechanisms occurring in N,N′-di-1-naphthalenyl-N,N′-diphenyl [1,1':4′,1″:4″,1‴-quaterphenyl]-4,4‴-diamine (4P-NPD)-based OFETs are investigated. Electrical transfer characteristics show that photo-induced oxidation of the organic thin-film decreases the hole mobility and increases the threshold voltage. The inverse hole mobility depends approximately linearly on the concentration of photo-induced defect states, which is in agreement with the Multiple Trapping and Release model. This implies that the created defects act as hole traps located energetically above the highest occupied molecular orbital level. In contrast, electrical stress increases the threshold voltage without affecting the hole mobility. This behavior is related to charge trapping, which probably take place in the gate dielectric as indicated by a relatively long trapping time of ∼102 s. Time-resolved photoluminescence spectroscopy, which proved to be sensitive to both mobile and trapped charges, shows that the threshold voltage shift is caused exclusively by charge accumulation. The obtained results broaden the fundamental knowledge about the degradation processes occurring in OFETs, which is highly relevant for increasing their stability., author+an = 2=highlight}, keywords = {}, pubstate = {published}, tppubtype = {article} } The field of organic field-effect transistors (OFETs) has matured over the past two decades and devices with charge carrier mobilities of several cm2/Vs have been demonstrated. Nevertheless, to enter commercial products, the operational stability of OFET technology also needs to be addressed. Herein, two potential degradation mechanisms occurring in N,N′-di-1-naphthalenyl-N,N′-diphenyl [1,1':4′,1″:4″,1‴-quaterphenyl]-4,4‴-diamine (4P-NPD)-based OFETs are investigated. Electrical transfer characteristics show that photo-induced oxidation of the organic thin-film decreases the hole mobility and increases the threshold voltage. The inverse hole mobility depends approximately linearly on the concentration of photo-induced defect states, which is in agreement with the Multiple Trapping and Release model. This implies that the created defects act as hole traps located energetically above the highest occupied molecular orbital level. In contrast, electrical stress increases the threshold voltage without affecting the hole mobility. This behavior is related to charge trapping, which probably take place in the gate dielectric as indicated by a relatively long trapping time of ∼102 s. Time-resolved photoluminescence spectroscopy, which proved to be sensitive to both mobile and trapped charges, shows that the threshold voltage shift is caused exclusively by charge accumulation. The obtained results broaden the fundamental knowledge about the degradation processes occurring in OFETs, which is highly relevant for increasing their stability., author+an = 2=highlight |
Kumar, Shailesh; Leißner, Till; Boroviks, Sergejs; Andersen, Sebastian; Fiutowski, Jacek; Rubahn, Horst-Günter; Mortensen, Asger N; Bozhevolnyi, Sergey I Efficient coupling of single organic molecules to channel plasmon polaritons supported by V-grooves in monocrystalline gold Journal Article ACS Photonics, accepted , 2020. @article{Kumar2020, title = {Efficient coupling of single organic molecules to channel plasmon polaritons supported by V-grooves in monocrystalline gold}, author = {Shailesh Kumar and Till Leißner and Sergejs Boroviks and Sebastian Andersen and Jacek Fiutowski and Horst-Günter Rubahn and Asger N Mortensen and Sergey I Bozhevolnyi}, year = {2020}, date = {2020-01-01}, journal = {ACS Photonics}, volume = {accepted}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2019 |
Klick, Alwin; Großmann, Malte; Beewen, Maria; Bittorf, Paul; Fiutowski, Jacek; Leißner, Till; Rubahn, Horst-Günter; Reinhardt, Carsten; Elmers, Hans-Joachim; Bauer, Michael Femtosecond time-resolved photoemission electron microscopy operated at sample illumination from the rear side Journal Article Review of Scientific Instruments, 90 (5), pp. 053704, 2019. @article{Klick2019, title = {Femtosecond time-resolved photoemission electron microscopy operated at sample illumination from the rear side}, author = {Alwin Klick and Malte Großmann and Maria Beewen and Paul Bittorf and Jacek Fiutowski and Till Leißner and Horst-Günter Rubahn and Carsten Reinhardt and Hans-Joachim Elmers and Michael Bauer}, url = {https://doi.org/10.1063/1.5088031, author+an = 6=highlight}, doi = {10.1063/1.5088031}, year = {2019}, date = {2019-01-01}, journal = {Review of Scientific Instruments}, volume = {90}, number = {5}, pages = {053704}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2018 |
Cielecki, Paweł Piotr; Adam, Jost; Leißner, Till; Patil, Bhushan Ramesh; Madsen, Morten; Rubahn, Horst-Günter; Kjelstrup-Hansen, Jakob; Fiutowski, Jacek Photo-induced degradation mechanisms in 4P-NPD thin films Journal Article 63, author+an = 3=highlight , pp. 114–119, 2018, ISSN: 1566-1199. @article{Cielecki2018, title = {Photo-induced degradation mechanisms in 4P-NPD thin films}, author = {Paweł Piotr Cielecki and Jost Adam and Till Leißner and Bhushan Ramesh Patil and Morten Madsen and Horst-Günter Rubahn and Jakob Kjelstrup-Hansen and Jacek Fiutowski}, url = {http://www.sciencedirect.com/science/article/pii/S1566119918304531}, doi = {10.1016/j.orgel.2018.08.047}, issn = {1566-1199}, year = {2018}, date = {2018-09-07}, volume = {63, author+an = 3=highlight}, pages = {114--119}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Klick, Alwin; Wagner, René; Großmann, Malte; Kadem, Laith F; Leißner, Till; Rubahn, Horst-Günter; Selhuber-Unkel, Christine; Bauer, Michael Detection and characterization of attenuated multimode waveguiding in SiO₂ slabs using photoemission electron microscopy Journal Article 98 , pp. 085128, 2018. @article{Klick2018, title = {Detection and characterization of attenuated multimode waveguiding in SiO₂ slabs using photoemission electron microscopy}, author = {Alwin Klick and René Wagner and Malte Großmann and Laith F Kadem and Till Leißner and Horst-Günter Rubahn and Christine Selhuber-Unkel and Michael Bauer}, doi = {10.1103/PhysRevB.98.085128, author+an = 5=highlight}, year = {2018}, date = {2018-08-16}, volume = {98}, pages = {085128}, publisher = {American Physical Society}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Großmann, Malte; Thomaschewski, Martin; Klick, Alwin; Goszczak, Arkadiusz Jarosław; Sobolewska, Elżbieta Karolina; Leißner, Till; Adam, Jost; Fiutowski, Jacek; Rubahn, Horst-Günter; Bauer, Michael Single-Mode to Multi-Mode Crossover in Thin-Load Polymethyl Methacrylate Plasmonic Waveguides Journal Article 13 (4), pp. 1441–1448, 2018, ISSN: 1557-1963. @article{Grossmann2018, title = {Single-Mode to Multi-Mode Crossover in Thin-Load Polymethyl Methacrylate Plasmonic Waveguides}, author = {Malte Großmann and Martin Thomaschewski and Alwin Klick and Arkadiusz Jarosław Goszczak and Elżbieta Karolina Sobolewska and Till Leißner and Jost Adam and Jacek Fiutowski and Horst-Günter Rubahn and Michael Bauer}, doi = {10.1007/s11468-017-0649-3}, issn = {1557-1963}, year = {2018}, date = {2018-08-01}, volume = {13}, number = {4}, pages = {1441--1448}, abstract = {Mode character and mode dispersion of sub-60-nm-thick polymethyl methacrylate dielectric-loaded surface plasmon-polariton waveguides (DLSPPWs) are investigated using photoemission electron microscopy and finite element method simulations. Experiment and simulation show excellent agreement and allow identifying a crossover from single-mode to multi-mode waveguiding as a function of excitation wavelength λ and DLßPW cross section. Experiment and simulations yield, furthermore, indications for the formation of a surface plasmon-polariton cavity mode in the close vicinity of the waveguides., author+an = 6=highlight}, keywords = {}, pubstate = {published}, tppubtype = {article} } Mode character and mode dispersion of sub-60-nm-thick polymethyl methacrylate dielectric-loaded surface plasmon-polariton waveguides (DLSPPWs) are investigated using photoemission electron microscopy and finite element method simulations. Experiment and simulation show excellent agreement and allow identifying a crossover from single-mode to multi-mode waveguiding as a function of excitation wavelength λ and DLßPW cross section. Experiment and simulations yield, furthermore, indications for the formation of a surface plasmon-polariton cavity mode in the close vicinity of the waveguides., author+an = 6=highlight |
2017 |
Sobolewska, Elżbieta Karolina; Józefowski, Leszek; Kawalec, Tomasz; Leißner, Till; Rubahn, Horst-Günter; Adam, Jost; Fiutowski, Jacek Excitation of surface plasmon polaritons by fluorescent light from organic nanofibers Journal Article 402, author+an = 4=highlight , pp. 630–634, 2017, ISSN: 0030-4018. @article{Sobolewska2017, title = {Excitation of surface plasmon polaritons by fluorescent light from organic nanofibers}, author = {Elżbieta Karolina Sobolewska and Leszek Józefowski and Tomasz Kawalec and Till Leißner and Horst-Günter Rubahn and Jost Adam and Jacek Fiutowski}, url = {http://www.sciencedirect.com/science/article/pii/S0030401817305412}, doi = {10.1016/j.optcom.2017.06.065}, issn = {0030-4018}, year = {2017}, date = {2017-11-01}, volume = {402, author+an = 4=highlight}, pages = {630--634}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Cielecki, Paweł Piotr; Sobolewska, Elżbieta Karolina; Kostiučenko, Oksana; Leißner, Till; Tamulevičius, Tomas; Tamulevičius, Sigitas; Rubahn, Horst-Günter; Adam, Jost; Fiutowski, Jacek Plasmon–organic fiber interactions in diamond-like carbon coated nanostructured gold films Journal Article 402, author+an = 4=highlight , pp. 635–640, 2017, ISSN: 0030-4018. @article{Cielecki2017, title = {Plasmon–organic fiber interactions in diamond-like carbon coated nanostructured gold films}, author = {Paweł Piotr Cielecki and Elżbieta Karolina Sobolewska and Oksana Kostiučenko and Till Leißner and Tomas Tamulevičius and Sigitas Tamulevičius and Horst-Günter Rubahn and Jost Adam and Jacek Fiutowski}, url = {http://www.sciencedirect.com/science/article/pii/S0030401817305400}, doi = {10.1016/j.optcom.2017.06.064}, issn = {0030-4018}, year = {2017}, date = {2017-11-01}, volume = {402, author+an = 4=highlight}, pages = {635--640}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2016 |
Sobolewska, Elżbieta K; Leißner, Till; Jozefowski, Leszek; Brewer, Jonathan; Rubahn, Horst-Günter; Adam, Jost; Fiutowski, Jacek Surface plasmons excited by the photoluminescence of organic nanofibers in hybrid plasmonic systems Inproceedings Proceedings of SPIE, pp. 9884 - 9884 - 7, 2016. @inproceedings{Sobolewska2016, title = {Surface plasmons excited by the photoluminescence of organic nanofibers in hybrid plasmonic systems}, author = {Elżbieta K Sobolewska and Till Leißner and Leszek Jozefowski and Jonathan Brewer and Horst-Günter Rubahn and Jost Adam and Jacek Fiutowski}, doi = {10.1117/12.2227813, author+an = 2=highlight}, year = {2016}, date = {2016-04-16}, booktitle = {Proceedings of SPIE}, volume = {9884}, pages = {9884 - 9884 - 7}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
2015 |
Leißner, Till; Kostiučenko, Oksana; Brewer, Jonathan R; Rubahn, Horst-Günter; Fiutowski, Jacek Nanostructure induced changes in lifetime and enhanced second-harmonic response of organic-plasmonic hybrids Journal Article 107, author+an = 1=highlight (25), pp. 251102, 2015. @article{Leissner2015, title = {Nanostructure induced changes in lifetime and enhanced second-harmonic response of organic-plasmonic hybrids}, author = {Till Leißner and Oksana Kostiučenko and Jonathan R Brewer and Horst-Günter Rubahn and Jacek Fiutowski}, doi = {10.1063/1.4938007}, year = {2015}, date = {2015-12-21}, volume = {107, author+an = 1=highlight}, number = {25}, pages = {251102}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Kostiučenko, Oksana; Leißner, Till; Brewer, Jonathan R; Tamulevičius, Tomas; Tamulevičius, Sigitas; Fiutowski, Jacek; Rubahn, Horst-Günter Local field enhanced second-harmonic response of organic nanofibers deposited on encapsulated plasmonic substrates Inproceedings Proceedings of SPIE, pp. 9547 - 9547 - 6, 2015. @inproceedings{Kostiucenko2015, title = {Local field enhanced second-harmonic response of organic nanofibers deposited on encapsulated plasmonic substrates}, author = {Oksana Kostiučenko and Till Leißner and Jonathan R Brewer and Tomas Tamulevičius and Sigitas Tamulevičius and Jacek Fiutowski and Horst-Günter Rubahn}, doi = {10.1117/12.2189478, author+an = 2=highlight}, year = {2015}, date = {2015-08-15}, booktitle = {Proceedings of SPIE}, volume = {9547}, pages = {9547 - 9547 - 6}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
2014 |
Søndergaard, T; Skovsen, E; Lemke, C; Holmgaard, T; Leissner, T; Eriksen, R L; Beermann, J; Bauer, M; Pedersen, K; Bozhevolnyi, S I Plasmonic black metal polarizers for ultra-short laser pulses Inproceedings Proceedings of SPIE, pp. 9163 - 9163 - 11, 2014. @inproceedings{Soendergaard2014, title = {Plasmonic black metal polarizers for ultra-short laser pulses}, author = {T Søndergaard and E Skovsen and C Lemke and T Holmgaard and T Leissner and R L Eriksen and J Beermann and M Bauer and K Pedersen and S I Bozhevolnyi}, doi = {10.1117/12.2061943, author+an = 5=highlight}, year = {2014}, date = {2014-09-10}, booktitle = {Proceedings of SPIE}, volume = {9163}, pages = {9163 - 9163 - 11}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Lemke, Christoph; Leißner, Till; Klick, Alwin; Fiutowski, Jacek; Radke, Jörn Willers; Thomaschewski, Martin; Kjelstrup-Hansen, Jakob; Rubahn, Horst-Günter; Bauer, Michael The complex dispersion relation of surface plasmon polaritons at gold/para-hexaphenylene interfaces Journal Article 116 (3), pp. 585–591, 2014, ISSN: 1432-0649. @article{Lemke2014, title = {The complex dispersion relation of surface plasmon polaritons at gold/para-hexaphenylene interfaces}, author = {Christoph Lemke and Till Leißner and Alwin Klick and Jacek Fiutowski and Jörn Willers Radke and Martin Thomaschewski and Jakob Kjelstrup-Hansen and Horst-Günter Rubahn and Michael Bauer}, doi = {10.1007/s00340-013-5737-2}, issn = {1432-0649}, year = {2014}, date = {2014-09-01}, volume = {116}, number = {3}, pages = {585--591}, abstract = {Two-photon photoemission electron microscopy (2P-PEEM) is used to measure the real and imaginary part of the dispersion relation of surface plasmon polaritons at different interface systems. A comparison of calculated and measured dispersion data for a gold/vacuum interface demonstrates the capability of the presented experimental approach. A systematic 2P-PEEM study on the dispersion relation of dielectric-loaded gold surfaces shows how effective the propagation of surface plasmon polaritons at a gold/para-hexaphenylene interface can be tuned by adjustment of the dielectric film thickness. Deviations of the experimental results from effective index calculations indicate the relevance of thin film peculiarities arising from the details of the growth process and corroborate the need of experimental analysis techniques for dispersion relation measurements., author+an = 2=highlight}, keywords = {}, pubstate = {published}, tppubtype = {article} } Two-photon photoemission electron microscopy (2P-PEEM) is used to measure the real and imaginary part of the dispersion relation of surface plasmon polaritons at different interface systems. A comparison of calculated and measured dispersion data for a gold/vacuum interface demonstrates the capability of the presented experimental approach. A systematic 2P-PEEM study on the dispersion relation of dielectric-loaded gold surfaces shows how effective the propagation of surface plasmon polaritons at a gold/para-hexaphenylene interface can be tuned by adjustment of the dielectric film thickness. Deviations of the experimental results from effective index calculations indicate the relevance of thin film peculiarities arising from the details of the growth process and corroborate the need of experimental analysis techniques for dispersion relation measurements., author+an = 2=highlight |
Lemke, Christoph; Leißner, Till; Evlyukhin, Andrey; Radke, Jörn W; Klick, Alwin; Fiutowski, Jacek; Kjelstrup-Hansen, Jakob; Rubahn, Horst-Günter; Chichkov, Boris N; Reinhardt, Carsten; Bauer, Michael The Interplay between Localized and Propagating Plasmonic Excitations Tracked in Space and Time Journal Article 14, author+an = 2=highlight (5), pp. 2431–2435, 2014, (PMID: 24702430). @article{Lemke2014a, title = {The Interplay between Localized and Propagating Plasmonic Excitations Tracked in Space and Time}, author = {Christoph Lemke and Till Leißner and Andrey Evlyukhin and Jörn W Radke and Alwin Klick and Jacek Fiutowski and Jakob Kjelstrup-Hansen and Horst-Günter Rubahn and Boris N Chichkov and Carsten Reinhardt and Michael Bauer}, doi = {10.1021/nl500106z}, year = {2014}, date = {2014-04-04}, volume = {14, author+an = 2=highlight}, number = {5}, pages = {2431--2435}, note = {PMID: 24702430}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Skovsen, E; Søndergaard, T; Lemke, C; Holmgaard, T; Leißner, T; Eriksen, R L; Beermann, J; Bauer, M; Pedersen, K; Bozhevolnyi, S I Publisher's Note: Plasmonic black gold based broadband polarizers for ultra-short laser pulses [Appl. Phys. Lett. 103, 211102 (2013)] Journal Article 104 (1), pp. 019903, 2014. @article{Skovsen2014, title = {Publisher's Note: Plasmonic black gold based broadband polarizers for ultra-short laser pulses [Appl. Phys. Lett. 103, 211102 (2013)]}, author = {E Skovsen and T Søndergaard and C Lemke and T Holmgaard and T Leißner and R L Eriksen and J Beermann and M Bauer and K Pedersen and S I Bozhevolnyi}, doi = {10.1063/1.4860979}, year = {2014}, date = {2014-01-10}, volume = {104}, number = {1}, pages = {019903}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2013 |
Lemke, Christoph; Leißner, Till; Klick, Alwin; Radke, Jörn W; Fiutowski, Jacek; Kjelstrup-Hansen, Jakob; Rubahn, Horst-Günter; Bauer, Michael Measurement of surface plasmon autocorrelation functions Journal Article 21 (22), pp. 27392–27401, 2013. @article{Lemke2013a, title = {Measurement of surface plasmon autocorrelation functions}, author = {Christoph Lemke and Till Leißner and Alwin Klick and Jörn W Radke and Jacek Fiutowski and Jakob Kjelstrup-Hansen and Horst-Günter Rubahn and Michael Bauer}, url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-21-22-27392}, doi = {10.1364/OE.21.027392}, year = {2013}, date = {2013-11-04}, volume = {21}, number = {22}, pages = {27392--27401}, publisher = {OSA}, abstract = {In this paper we demonstrate the realization of an autocorrelator for the characterization of ultrashort surface plasmon polariton (SPP) pulses. A wedge shaped structure is used to continuously increase the time delay between two interfering SPPs. The autocorrelation signal is monitored by non-linear two-photon photoemission electron microscopy. The presented approach is applicable to other SPP sensitive detection schemes that provide only moderate spatial resolution and may therefore be of general interest in the field of ultrafast plasmonics., author+an = 2=highlight}, keywords = {}, pubstate = {published}, tppubtype = {article} } In this paper we demonstrate the realization of an autocorrelator for the characterization of ultrashort surface plasmon polariton (SPP) pulses. A wedge shaped structure is used to continuously increase the time delay between two interfering SPPs. The autocorrelation signal is monitored by non-linear two-photon photoemission electron microscopy. The presented approach is applicable to other SPP sensitive detection schemes that provide only moderate spatial resolution and may therefore be of general interest in the field of ultrafast plasmonics., author+an = 2=highlight |
Leißner, Till; Lemke, Christoph; Fiutowski, Jacek; Radke, Jöorn Willers; Klick, Alwin; Tavares, Luciana; Kjelstrup-Hansen, Jakob; Rubahn, Horst-Güunter; Bauer, Michael Morphological Tuning of the Plasmon Dispersion Relation in Dielectric-Loaded Nanofiber Waveguides Journal Article 111 , pp. 046802, 2013. @article{Leissner2013bb, title = {Morphological Tuning of the Plasmon Dispersion Relation in Dielectric-Loaded Nanofiber Waveguides}, author = {Till Leißner and Christoph Lemke and Jacek Fiutowski and Jöorn Willers Radke and Alwin Klick and Luciana Tavares and Jakob Kjelstrup-Hansen and Horst-Güunter Rubahn and Michael Bauer}, doi = {10.1103/PhysRevLett.111.046802, author+an = 1=highlight}, year = {2013}, date = {2013-07-26}, volume = {111}, pages = {046802}, publisher = {American Physical Society}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Leißner, Till Plasmonische Wellenleitung an Gold/para-Hexaphenyl-Grenzflächen PhD Thesis 2013. @phdthesis{Leissner2013b, title = {Plasmonische Wellenleitung an Gold/para-Hexaphenyl-Grenzflächen}, author = {Till Leißner}, year = {2013}, date = {2013-06-14}, pages = {99}, institution = {CAU Kiel}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } |
Leißner, Till; Lemke, Christoph; Jauernik, Stephan; Müller, Mathias; Fiutowski, Jacek; Tavares, Luciana; Thilsing-Hansen, Kasper; Kjelstrup-Hansen, Jakob; Magnussen, Olaf; Rubahn, Horst-Günter; Bauer, Michael Surface plasmon polariton propagation in organic nanofiber based plasmonic waveguides Journal Article 21 (7), pp. 8251–8260, 2013. @article{Leissner2013a, title = {Surface plasmon polariton propagation in organic nanofiber based plasmonic waveguides}, author = {Till Leißner and Christoph Lemke and Stephan Jauernik and Mathias Müller and Jacek Fiutowski and Luciana Tavares and Kasper Thilsing-Hansen and Jakob Kjelstrup-Hansen and Olaf Magnussen and Horst-Günter Rubahn and Michael Bauer}, url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-21-7-8251}, doi = {10.1364/OE.21.008251}, year = {2013}, date = {2013-04-08}, volume = {21}, number = {7}, pages = {8251--8260}, publisher = {OSA}, abstract = {Plasmonic wave packet propagation is monitored in dielectric-loaded surface plasmon polariton waveguides realized from para-hexaphenylene nanofibers deposited onto a 60 nm thick gold film. Using interferometric time resolved two-photon photoemission electron microscopy we are able to determine phase and group velocity of the surface plasmon polariton (SPP) waveguiding mode (0.967c and 0.85c at λLaser = 812nm) as well as the effective propagation length (39 μm) along the fiber-gold interface. We furthermore observe that the propagation properties of the SPP waveguiding mode are governed by the cross section of the waveguide., author+an = 1=highlight}, keywords = {}, pubstate = {published}, tppubtype = {article} } Plasmonic wave packet propagation is monitored in dielectric-loaded surface plasmon polariton waveguides realized from para-hexaphenylene nanofibers deposited onto a 60 nm thick gold film. Using interferometric time resolved two-photon photoemission electron microscopy we are able to determine phase and group velocity of the surface plasmon polariton (SPP) waveguiding mode (0.967c and 0.85c at λLaser = 812nm) as well as the effective propagation length (39 μm) along the fiber-gold interface. We furthermore observe that the propagation properties of the SPP waveguiding mode are governed by the cross section of the waveguide., author+an = 1=highlight |
Lemke, Christoph; Schneider, Christian; Leißner, Till; Bayer, Daniela; Radke, Jörn W; Fischer, Alexander; Melchior, Pascal; Evlyukhin, Andrey B; Chichkov, Boris N; Reinhardt, Carsten; Bauer, Michael; Aeschlimann, Martin Spatiotemporal Characterization of SPP Pulse Propagation in Two-Dimensional Plasmonic Focusing Devices Journal Article 13, author+an = 3=highlight (3), pp. 1053–1058, 2013, (PMID: 23432531). @article{Lemke2013, title = {Spatiotemporal Characterization of SPP Pulse Propagation in Two-Dimensional Plasmonic Focusing Devices}, author = {Christoph Lemke and Christian Schneider and Till Leißner and Daniela Bayer and Jörn W Radke and Alexander Fischer and Pascal Melchior and Andrey B Evlyukhin and Boris N Chichkov and Carsten Reinhardt and Michael Bauer and Martin Aeschlimann}, doi = {10.1021/nl3042849}, year = {2013}, date = {2013-02-22}, volume = {13, author+an = 3=highlight}, number = {3}, pages = {1053--1058}, note = {PMID: 23432531}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2012 |
Lemke, Christoph; Leißner, Till; Jauernik, Stephan; Klick, Alwin; Fiutowski, Jacek; Kjelstrup-Hansen, Jakob; Rubahn, Horst-Günter; Bauer, Michael Mapping surface plasmon polariton propagation via counter-propagating light pulses Journal Article 20 (12), pp. 12877–12884, 2012. @article{Lemke2012, title = {Mapping surface plasmon polariton propagation via counter-propagating light pulses}, author = {Christoph Lemke and Till Leißner and Stephan Jauernik and Alwin Klick and Jacek Fiutowski and Jakob Kjelstrup-Hansen and Horst-Günter Rubahn and Michael Bauer}, url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-20-12-12877}, doi = {10.1364/OE.20.012877}, year = {2012}, date = {2012-06-04}, volume = {20}, number = {12}, pages = {12877--12884}, publisher = {OSA}, abstract = {In an interferometric time-resolved photoemission electron microscopy (ITR-PEEM) experiment, the near-field associated with surface plasmon polaritons (SPP) can be locally sensed via interference with ultrashort laser pulses. Here, we present ITR-PEEM data of SPP propagation at a gold vacuum interface recorded in a counter-propagating pump-probe geometry. In comparison to former work this approach provides a very intuitive real-time access to the SPP wave packet. The quantitative analysis of the PEEM data enables us to determine in a rather direct manner the propagation characteristics of the SPP., author+an = 2=highlight}, keywords = {}, pubstate = {published}, tppubtype = {article} } In an interferometric time-resolved photoemission electron microscopy (ITR-PEEM) experiment, the near-field associated with surface plasmon polaritons (SPP) can be locally sensed via interference with ultrashort laser pulses. Here, we present ITR-PEEM data of SPP propagation at a gold vacuum interface recorded in a counter-propagating pump-probe geometry. In comparison to former work this approach provides a very intuitive real-time access to the SPP wave packet. The quantitative analysis of the PEEM data enables us to determine in a rather direct manner the propagation characteristics of the SPP., author+an = 2=highlight |
Leißner, Till; Thilsing-Hansen, Kasper; Lemke, Christoph; Jauernik, Stephan; Kjelstrup-Hansen, Jakob; Bauer, Michael; Rubahn, Horst-Günter Surface Plasmon Polariton Emission Prompted by Organic Nanofibers on Thin Gold Films Journal Article 7 (2), pp. 253–260, 2012, ISSN: 1557-1963. @article{Leissner2012, title = {Surface Plasmon Polariton Emission Prompted by Organic Nanofibers on Thin Gold Films}, author = {Till Leißner and Kasper Thilsing-Hansen and Christoph Lemke and Stephan Jauernik and Jakob Kjelstrup-Hansen and Michael Bauer and Horst-Günter Rubahn}, doi = {10.1007/s11468-011-9301-9}, issn = {1557-1963}, year = {2012}, date = {2012-06-01}, volume = {7}, number = {2}, pages = {253--260}, abstract = {The excitation of surface plasmon polaritons (SPP) at a gold–vacuum interface by femtosecond light pulses mediated by organic nanofiber-induced dielectric perturbations is observed using interferometric time-resolved photoemission electron microscopy. The experimental data are quantitatively reproduced by analytic simulations, where the nanofibers are considered as superior source of the SPP emission. The flexibility and tuneability of phenylene-based nanofibers in their morphology and intrinsic optical properties open up future applications to fabricate custom-designed nanoscale sources of SPP., author+an = 1=highlight}, keywords = {}, pubstate = {published}, tppubtype = {article} } The excitation of surface plasmon polaritons (SPP) at a gold–vacuum interface by femtosecond light pulses mediated by organic nanofiber-induced dielectric perturbations is observed using interferometric time-resolved photoemission electron microscopy. The experimental data are quantitatively reproduced by analytic simulations, where the nanofibers are considered as superior source of the SPP emission. The flexibility and tuneability of phenylene-based nanofibers in their morphology and intrinsic optical properties open up future applications to fabricate custom-designed nanoscale sources of SPP., author+an = 1=highlight |
Leißner, Till; Jauernik, Stephan; Lemke, Christoph; Fiutowski, Jacek; Thilsing-Hansen, Kasper; Kjelstrup-Hansen, Jakob; Rubahn, Horst-Günter; Bauer, Michael Application of a grating coupler for surface plasmon polariton excitation in a photoemission electron microscopy experiment Inproceedings Proceedings of SPIE, pp. 8424 - 8424 - 6, 2012. @inproceedings{Leissner2012a, title = {Application of a grating coupler for surface plasmon polariton excitation in a photoemission electron microscopy experiment}, author = {Till Leißner and Stephan Jauernik and Christoph Lemke and Jacek Fiutowski and Kasper Thilsing-Hansen and Jakob Kjelstrup-Hansen and Horst-Günter Rubahn and Michael Bauer}, doi = {10.1117/12.921761, author+an = 1=highlight}, year = {2012}, date = {2012-05-01}, booktitle = {Proceedings of SPIE}, volume = {8424}, pages = {8424 - 8424 - 6}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Heinemann, Nils; Grunau, Jan; Leißner, Till; Andreyev, Oleksiy; Kuhn, Sonja; Jung, Ulrich; Zargarani, Dordaneh; Herges, Rainer; Magnussen, Olaf; Bauer, Michael Reversible switching in self-assembled monolayers of azobenzene thiolates on Au (111) probed by threshold photoemission Journal Article 402, author+an = 3=highlight , pp. 22–28, 2012, ISSN: 0301-0104. @article{Heinemann2012, title = {Reversible switching in self-assembled monolayers of azobenzene thiolates on Au (111) probed by threshold photoemission}, author = {Nils Heinemann and Jan Grunau and Till Leißner and Oleksiy Andreyev and Sonja Kuhn and Ulrich Jung and Dordaneh Zargarani and Rainer Herges and Olaf Magnussen and Michael Bauer}, url = {http://www.sciencedirect.com/science/article/pii/S0301010412001449}, doi = {10.1016/j.chemphys.2012.03.025}, issn = {0301-0104}, year = {2012}, date = {2012-04-10}, volume = {402, author+an = 3=highlight}, pages = {22--28}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2011 |
Heinemann, N; Leissner, T; Grunau, J; Rohwer, T; Andreyev, O; Bauer, M Two-photon photoemission from ex-situ prepared butanethiol SAMs on Au (111) Journal Article 382, author+an = 2=highlight (1), pp. 1–4, 2011, ISSN: 0301-0104. @article{Heinemann2011, title = {Two-photon photoemission from ex-situ prepared butanethiol SAMs on Au (111)}, author = {N Heinemann and T Leissner and J Grunau and T Rohwer and O Andreyev and M Bauer}, url = {http://www.sciencedirect.com/science/article/pii/S0301010411000784}, doi = {10.1016/j.chemphys.2011.03.002}, issn = {0301-0104}, year = {2011}, date = {2011-03-10}, volume = {382, author+an = 2=highlight}, number = {1}, pages = {1--4}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2010 |
Rohmer, Martin; Bauer, Michael; Leissner, Till; Schneider, Christian; Fischer, Alexander; Niedner-Schatteburg, Gereon; v. Issendorff, Bernd; Aeschlimann, Martin Time-resolved photoelectron nano-spectroscopy of individual silver particles: Perspectives and limitations Journal Article 247 (5), pp. 1132–1138, 2010. @article{Rohmer2010, title = {Time-resolved photoelectron nano-spectroscopy of individual silver particles: Perspectives and limitations}, author = {Martin Rohmer and Michael Bauer and Till Leissner and Christian Schneider and Alexander Fischer and Gereon Niedner-Schatteburg and Bernd v. Issendorff and Martin Aeschlimann}, doi = {10.1002/pssb.200945479}, year = {2010}, date = {2010-03-22}, volume = {247}, number = {5}, pages = {1132--1138}, abstract = {Abstract Simultaneous time- and energy-resolved two-photon photoemission with nanometer resolution is demonstrated for the first time. We monitor the energy dependence of the decay dynamics of electron excitations in individual silver particles, which were deposited from a gas aggregation cluster source onto a silicon substrate. We show furthermore that the near-field enhancement due to plasmon-resonant excitation is an efficient means to address individual nanometer-sized particles using photoemission electron microscopy., author+an = 3=highlight}, keywords = {}, pubstate = {published}, tppubtype = {article} } Abstract Simultaneous time- and energy-resolved two-photon photoemission with nanometer resolution is demonstrated for the first time. We monitor the energy dependence of the decay dynamics of electron excitations in individual silver particles, which were deposited from a gas aggregation cluster source onto a silicon substrate. We show furthermore that the near-field enhancement due to plasmon-resonant excitation is an efficient means to address individual nanometer-sized particles using photoemission electron microscopy., author+an = 3=highlight |
2008 |
Leißner, Till Untersuchung zweier Molekularschaltersysteme mittels zeitaufgelöster Zwei-Photonen-Photoemissionsspektroskopie Masters Thesis 2008. @mastersthesis{Leissner2008, title = {Untersuchung zweier Molekularschaltersysteme mittels zeitaufgelöster Zwei-Photonen-Photoemissionsspektroskopie}, author = {Till Leißner}, year = {2008}, date = {2008-12-31}, address = {Kiel}, institution = {CAU Kiel}, keywords = {}, pubstate = {published}, tppubtype = {mastersthesis} } |