Zobrazeno 1 - 10
of 319
pro vyhledávání: '"Torsten Meier"'
Publikováno v:
Physical Review Research, Vol 5, Iss 2, p L022040 (2023)
Field-induced tunneling is one of the most fundamental quantum phenomena. In atoms this process has been successfully explored by attosecond interferometry based on high harmonic generation. Adapting this method to solids, the reconstruction of the s
Externí odkaz:
https://doaj.org/article/46c38bdfc53a44c096d1d98ae8b6e8b7
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043152 (2023)
The acceleration theorem for wave packet propagation in periodic potentials disentangles the k-space dynamics and real space dynamics. This is well known and understood for Bloch oscillations and super Bloch oscillations in the presence of position-i
Externí odkaz:
https://doaj.org/article/0949d68b021c47d8ac4788be6f79df04
Autor:
Daniel Berghoff, Johannes Bühler, Mischa Bonn, Alfred Leitenstorfer, Torsten Meier, Heejae Kim
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Berghoff et al. discover that polycrystalline MAPbI3 undergoes transient Wannier Stark localization at moderate field strengths, exhibiting substantial optical modulation with a fast response time. Since the polycrystallinity does not hinder the swit
Externí odkaz:
https://doaj.org/article/7bcc3b666995493ba8845788694f2927
Autor:
Alexander N. Kosarev, Hendrik Rose, Sergey V. Poltavtsev, Matthias Reichelt, Christian Schneider, Martin Kamp, Sven Höfling, Manfred Bayer, Torsten Meier, Ilya A. Akimov
Publikováno v:
Communications Physics, Vol 3, Iss 1, Pp 1-9 (2020)
Ultrafast optical manipulation of excitons in semiconductor nanostructures offers practical access to quantum phenomena in condensed matter. The authors demonstrate a new scheme to control the exciton dephasing in large ensembles of quantum dots by a
Externí odkaz:
https://doaj.org/article/eb61e493178a4c20b7e3b7bb821946cf
Autor:
Xuekai Ma, Bernd Berger, Marc Aßmann, Rodislav Driben, Torsten Meier, Christian Schneider, Sven Höfling, Stefan Schumacher
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020)
Vortices can be generated in many platforms and are useful due to manipulation of their vorticity. Here the authors show generation and optical switching of a vortex in exciton-polariton condensates using GaAs microcavities.
Externí odkaz:
https://doaj.org/article/81041b0dbd4944589050f04bf30d0b30
Autor:
Ruixin Zuo, Alexander Trautmann, Guifang Wang, Wolf-Rüdiger Hannes, Shidong Yang, Xiaohong Song, Torsten Meier, Marcelo Ciappina, Huynh Thanh Duc, Weifeng Yang
Publikováno v:
Ultrafast Science, Vol 2021 (2021)
High harmonic generation (HHG) from solids shows great application prospects in compact short-wavelength light sources and as a tool for imaging the dynamics in crystals with subnanometer spatial and attosecond temporal resolution. However, the under
Externí odkaz:
https://doaj.org/article/30537c6a2ca148c7aa8c864d2b0a9d36
Publikováno v:
New Journal of Physics, Vol 17, Iss 8, p 083043 (2015)
We predict a variety of composite quiescent and spinning two- and three-dimensional (2D and 3D) self-trapped modes in media with a repulsive nonlinearity whose local strength grows from center to periphery. These are 2D dipoles and quadrupoles, and 3
Externí odkaz:
https://doaj.org/article/20d90dffc1e9487e872bc3e433e07bea
Publikováno v:
New Journal of Physics, Vol 16, Iss 6, p 063035 (2014)
We show, by means of numerical and analytical methods, that media with a repulsive nonlinearity which grows from the center to the periphery support a remarkable variety of previously unknown complex stationary and dynamical three-dimensional (3D) so
Externí odkaz:
https://doaj.org/article/29bfc4d79c6c494e8001326cb7d403f7
Autor:
Markus Stein, Felix Schäfer, Daniel Anders, Jan H. Littmann, Melanie Fey, Alexander Trautmann, Cong Ngo, Johannes T. Steiner, Matthias Reichelt, Christian Fuchs, Kerstin Volz, Torsten Meier, Sangam Chatterjee
Publikováno v:
Ultrafast Phenomena and Nanophotonics XXVII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::148061da6d91ac97973c51839948461d
https://doi.org/10.1117/12.2650291
https://doi.org/10.1117/12.2650291
Autor:
Alexander Trautmann, Markus Stein, Felix Schäfer, Daniel Anders, Cong Ngo, Johannes T. Steiner, Matthias Reichelt, Sangam Chatterjee, Torsten Meier
Publikováno v:
Ultrafast Phenomena and Nanophotonics XXVII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::861e922b472d75aadd55b84ad669a9d0
https://doi.org/10.1117/12.2650169
https://doi.org/10.1117/12.2650169