Experimental Verification of Carrier Multiplication in Graphene

Autor: Tobias Plötzing, Andreas Knorr, Torben Winzer, Heinrich Kurz, Daniel Neumaier, Ermin Malic

Publikováno v: Nano Letters. 14:5371-5375

We report on the first direct experimental observation of carrier multiplication in graphene reaching a multiplication factor of up to 2 and persisting on a picoseconds time scale. Exploiting multicolor pump-probe measurement techniques, the excited

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f504b16b35197b0fd18b8a60040f7327
https://doi.org/10.1021/nl502114w

Molecular host-guest energy-transfer system with an ultralow amplified spontaneous emission threshold employing an ambipolar semiconducting host matrix

Autor: Michael Först, Raffaella Capelli, Ken-Tsung Wong, Stefano Toffanin, Tsyr-Yuan Hwu, Michele Muccini, Tobias Plötzing

Publikováno v: The journal of physical chemistry. B 114 (2010): 120–127. doi:10.1021/jp909003n
info:cnr-pdr/source/autori:Toffanin, Stefano; Capelli, Raffaella; Hwu, Tsyryuan; Wong, Kentsung; Plötzing, Tobias; Först, Michael; Muccini, Michele/titolo:Molecular host-guest energy-transfer system with an ultralow amplified spontaneous emission threshold employing an ambipolar semiconducting host matrix/doi:10.1021%2Fjp909003n/rivista:The journal of physical chemistry. B/anno:2010/pagina_da:120/pagina_a:127/intervallo_pagine:120–127/volume:114

We report on the characteristics of a host-guest lasing system obtained by coevaporation of an oligo(9,9-diarylfluorene) derivative named T3 with the red-emitter 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran dye (DCM). We demonstra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13482114b7e1cec52c8f3351c5885fe5
https://pubmed.ncbi.nlm.nih.gov/19961197

25ps all-optical switching in oxygen implanted silicon-on-insulator microring resonator

Autor: Tobias Plötzing, Michael Först, Thorsten Wahlbrink, Michael Waldow, Heinrich Kurz, Martin Gottheil, Jens Bolten

Publikováno v: Optics express. 16(11)

We present all-optical switching in oxygen ion implanted silicon microring resonators. Time-dependent signal modulation is achieved by shifting resonance wavelengths of microrings through the plasma dispersion effect via femtosecond photogeneration o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41392ec6ff971e21de0b423e668b92ea
https://pubmed.ncbi.nlm.nih.gov/18545478

Oxygen-ion implantation of SOI microring resonators for high-speed all-optical switching

Autor: Thorsten Wahlbrink, J. Niehusmann, Jens Bolten, Michael Först, Heinrich Kurz, Christian Moormann, Tobias Plötzing

Publikováno v: Integrated Photonics and Nanophotonics Research and Applications / Slow and Fast Light.

Ultrafast carrier-induced all-optical switching is demonstrated in an oxygen-ion implanted silicon-on-insulator microring. A reduced free carrier lifetime of 55 ps facilitates optical switching in the 1.55 µm range at modulation speeds larger than 5

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b75f79df29c56c92e1aeec5a44cd047
https://doi.org/10.1364/ipnra.2007.iwd2

Silicon photonic microcavities for optical switching

Autor: Tobias Plötzing, Sophie Schönenberger, Bert Jan Offrein, Marcus S. Dahlem, Thilo Stöferle, Michael Först, Heinrich Kurz, Stephan Götzinger, Vahid Sandoghdar, Nikolaj Moll, Thorsten Wahlbrink, Michael Waldow, Erich P. Ippen, Rainer F. Mahrt, Jens Bolten

Publikováno v: Scopus-Elsevier

The prospect of silicon photonics is particularly promising: the fabrication is mostly compatible with standard CMOS technology and it will offer tremendous advantages over traditional optical communication solutions with respect to size, cost and po

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d427a4d514f80e58c6dce4b17ec97f3
http://www.scopus.com/inward/record.url?eid=2-s2.0-84897964929&partnerID=MN8TOARS