Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Yuma, Bertrand"'
We demonstrate theoretically and experimentally that the nonlinear interaction between excitations whose harmonic energies coincide gives rise to a strong coupling that opens a new coherent ultrafast energy relaxation path. Instead of an incoherent d
Externí odkaz:
http://arxiv.org/abs/1604.01687
Autor:
Yuma, Bertrand Kei
Ce travail analyse la formation d'états liés par interaction coulombienne d'excitons dans un ensemble de nanotubes de carbone de chiralité (6,5) en solution. Sous l'action d'une impulsion laser de forte intensité, une grande densité d'excitons e
Externí odkaz:
http://www.theses.fr/2013STRAE022/document
Autor:
Yuma, Bertrand, Berciaud, Stéphane, Besbas, Jean, Shaver, Jonah, Santos, Silvia M., Gosh, Saunab, Weisman, R. Bruce, Cognet, Laurent, Gallart, Mathieu, Ziegler, Marc, Hönerlage, Bernd, Lounis, Brahim, Gilliot, Pierre
Publikováno v:
Phys. Rev. B 87, 205412 (2013)
We present a study of free carrier photo-generation and multi-carrier bound states, such as biexcitons and trions (ionized excitons), in semiconducting single-walled carbon nanotubes. Pump-and-probe measurements performed with fs pulses reveal the ef
Externí odkaz:
http://arxiv.org/abs/1302.1590
Autor:
Santos, Silvia, Yuma, Bertrand, Berciaud, Stéphane, Shaver, Jonah, Gallart, Mathieu, Gilliot, Pierre, Cognet, Laurent, Lounis, Brahim
We present evidence of all optical trion generation and emission in undoped single walled carbon nanotubes (SWCNTs). Luminescence spectra, recorded on individual SWCNTs over a large CW excitation intensity range, show trion emission peaks red-shifted
Externí odkaz:
http://arxiv.org/abs/1106.4993
Autor:
Yuma, Bertrand Kei
Publikováno v:
Autre. Université de Strasbourg, 2013. Français. ⟨NNT : 2013STRAE022⟩
In this thesis, we have studied the excitonic bound states formation in an ensemble of chirality (6,5) carbon nanotubes in solution. Under intense laser excitation, a large density of excitons is reached in the nanotube. This leads to the formation o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::17e2744f531ecb49c79f582166062d55
https://tel.archives-ouvertes.fr/tel-00994244
https://tel.archives-ouvertes.fr/tel-00994244