Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Johanna S. Kolb"'
Autor:
Holger Moench, Stephan Gronenborn, Xi Gu, Markus Herper, Roman Koerner, Johanna S. Kolb, Armand Pruijmboom, Stefan Schlegel, Alexander Weigl
Publikováno v:
Vertical-Cavity Surface-Emitting Lasers XXVII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b82a4802454e2757a38381c0ad88aa92
https://doi.org/10.1117/12.2647569
https://doi.org/10.1117/12.2647569
Autor:
Eric Rivière, Johanna S. Kolb, Miljenko Novosel, Marie-Laure Boillot, Hartmut G. Roskos, Mark D. Thomson, Katell Sénéchal-David
Publikováno v:
Comptes Rendus Chimie. 10:125-136
We present a study of the magnetic behavior of two isomeric derivatives of the photomagnetic Fe(II) complex, Fe(stpy)4(NCSe)2 (stpy = 4-styrylpyridine, either all-trans or all-cis), whose magnetic state depends on the conformation of the photoisomer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c04dbfef41d9586e0dea8b0c65e19dcd
https://doi.org/10.1016/j.crci.2006.10.003
https://doi.org/10.1016/j.crci.2006.10.003
Autor:
Manfred J. Walter, Johanna S. Kolb, Ullrich Scherf, Pavlos G. Lagoudakis, John M. Lupton, Hartmut G. Roskos, Anne Beate Hummel, M. Reufer
Publikováno v:
Nature Materials. 4:340-346
The ultimate efficiency of polymer light-emitting diodes is limited by the fraction of charges recombining in the molecular singlet manifold. We address the question of whether this fraction can principally exceed the fundamental limit set down by sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::555f43d459fd310c4609b20c24726ff9
https://doi.org/10.1038/nmat1354
https://doi.org/10.1038/nmat1354
Publikováno v:
Semiconductor Science and Technology. 18:28-32
We investigate the transmittance of thin doped GaAs layers in the terahertz (THz) frequency range taking into account multiple reflections. Our experimental and theoretical study aims at providing a guideline for designing the top-side contact layers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::716c1df4cc926f245026520a298a928b
https://doi.org/10.1088/0268-1242/18/1/304
https://doi.org/10.1088/0268-1242/18/1/304
Publikováno v:
Journal of Applied Physics. 92:2210-2212
We propose to utilize glass plates coated with indium tin oxide (ITO) as far-infrared dichroic mirrors, e.g., in optoelectronic terahertz spectroscopy for purposes such as electro-optic detection of terahertz radiation or in time-resolved experiments
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1b35ee1eaab716c25f12bd25c470a4e
https://doi.org/10.1063/1.1493650
https://doi.org/10.1063/1.1493650
Autor:
U. C. Pernisz, E. Mohler, Anne Beate Hummel, Klaus Köhler, Johanna S. Kolb, T. Bauer, Hartmut G. Roskos
Publikováno v:
Summaries of Papers Presented at the Lasers and Electro-Optics. CLEO '02. Technical Diges.
Summary form only given. We use time-resolved THz spectroscopy in order to investigate the properties of highly conductive thin films. In this contribution we present experimental data on two of such film systems, which can be used in free-space THz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ebd9f5338f5cc30b49ff0196217e45f
https://doi.org/10.1109/cleo.2002.1034078
https://doi.org/10.1109/cleo.2002.1034078
Autor:
Hartmut G. Roskos, Yu. A. Kosevich, Anne Beate Hummel, Tobias Bauer, Johanna S. Kolb, J.W. Goethe
Publikováno v:
The Thirteenth International Conference on Ultrafast Phenomena.
Terahertz-emission spectroscopy reveals two regimes of the Hall current of impulsively excited coherent charge-carrier wavepackets in a GaAs/AlGaAs superlattice as a function of the electric and magnetic bias fields.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f9cd49d153789f1317e922af1169e7a
https://doi.org/10.1364/up.2002.tud3
https://doi.org/10.1364/up.2002.tud3
Autor:
Klaus Köhler, Anne Beate Hummel, Johanna S. Kolb, Yuriy A. Kosevich, Hartmut G. Roskos, T. Bauer
The coherent Hall effect denotes the transient Hall response of impulsively excited coherent charge-carrier wave packets in a solid. We report the first experimental study of this phenomenon (i) using a semiconductor superlattice in crossed electric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd15f602529443001fcbd78641e68a1c
https://publica.fraunhofer.de/handle/publica/201500
https://publica.fraunhofer.de/handle/publica/201500
