Zobrazeno 1 - 10
of 25
pro vyhledávání: '"O G Schmidt"'
Publikováno v:
New Journal of Physics, Vol 15, Iss 5, p 055006 (2013)
The vectorial four-wave mixing response of an individual strongly confined exciton–biexciton system with fine-structure splitting in a GaAs/AlGaAs quantum dot is measured by dual-polarization heterodyne spectral interferometry. The results are comp
Externí odkaz:
https://doaj.org/article/11b0db1821054567a28079c004ec609e
Autor:
R. Huber, F. Kern, D. D. Karnaushenko, E. Eisner, P. Lepucki, A. Thampi, A. Mirhajivarzaneh, C. Becker, T. Kang, S. Baunack, B. Büchner, D. Karnaushenko, O. G. Schmidt, A. Lubk
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
Electron beam manipulation is important for their application in microscopes, lithography instruments, and colliders. Here the authors report a wafer scale, self-assembled, microcoil electrically-driven magnetic charge particle optic device that can
Externí odkaz:
https://doaj.org/article/b063ed56477e4027b674cd87b43f6e3a
Autor:
D. Brick, V. Engemaier, Y. Guo, M. Grossmann, G. Li, D. Grimm, O. G. Schmidt, M. Schubert, V. E. Gusev, M. Hettich, T. Dekorsy
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
Abstract We present a detailed experimental and theoretical study of the acoustic phonon modes in rolled-up multilayers with thickness of the layers in the nanometre and diameters in the micrometre range. We compare our results to planar, unrolled mu
Externí odkaz:
https://doaj.org/article/5779423e0f244984848baf289100510d
Autor:
B. Höfer, F. Olbrich, J. Kettler, M. Paul, J. Höschele, M. Jetter, S. L. Portalupi, F. Ding, P. Michler, O. G. Schmidt
Publikováno v:
AIP Advances, Vol 9, Iss 8, Pp 085112-085112-6 (2019)
We report on optical investigations of MOVPE-grown InGaAs/GaAs quantum dots emitting at the telecom O-band that were integrated onto uniaxial piezoelectric actuators. This promising technique, which does not degrade the emission brightness of the qua
Externí odkaz:
https://doaj.org/article/0358a2fbccda4677ac5abdf7b46fcca9
Autor:
L. B. Ma, S. L. Li, V. M. Fomin, M. Hentschel, J. B. Götte, Y. Yin, M. R. Jorgensen, O. G. Schmidt
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-6 (2016)
Optical spin–orbit coupling is known to occur in open systems such as helical waveguides. Here, the authors enable spin–orbit coupling of light confined to a closed path within an asymmetric optical microcavity and demonstrate a non-cyclic Berry
Externí odkaz:
https://doaj.org/article/adc79132b5394171bb9f800e7882d462
Publikováno v:
Communications Physics, Vol 3, Iss 1, Pp 1-8 (2020)
Topological defects such as vortices and phase slips in a superconductor system manifest spatial patterns and dynamics that are closely associated with the geometry of the system. Here, the authors investigate the topological transitions between vort
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::356733085505a9075165d6687205ddc5
http://link.springer.com/article/10.1038/s42005-020-00411-4
http://link.springer.com/article/10.1038/s42005-020-00411-4
Autor:
A. Bogusz, A. D. Müller, D. Blaschke, I. Skorupa, D. Bürger, A. Scholz, O. G. Schmidt, H. Schmidt
Publikováno v:
AIP Advances, Vol 4, Iss 10, Pp 107135-107135-7 (2014)
We report a unipolar, nonvolatile resistive switching in polycrystalline YMnO3 thin films grown by pulsed laser deposition and sandwiched between Au top and Ti/Pt bottom electrodes. The ratio of the resistance in the OFF and ON state is larger than 1
Externí odkaz:
https://doaj.org/article/205db0f314934ffda3aa32eefed448be
Autor:
O. G. Schmidt, Gerhard Abstreiter, Frank Ernst, Karl Eberl, K. Brunner, Jiangang Zhu, O. Kienzle
Publikováno v:
Microscopy of Semiconducting Materials 2001 ISBN: 9781351074629
This article summarizes results of recent experiments aiming to produce self-assembled Ge quantum dots embedded in Si by molecular beam epitaxy. In these experimental studies, conventional and analytical transmission electron microscopy have played a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1237510c5d80bf5e58786ac6c15841a0
https://doi.org/10.1201/9781351074629-35
https://doi.org/10.1201/9781351074629-35
Autor:
K Eberl, O G Schmidt
Publikováno v:
Semiconductor Science and Technology. 15:399-402
A detailed photoluminescence (PL) study elucidates the epitaxial limits for nominally pure and optically active Ge1-z Cz layers on Si(001) substrates. The C content is varied from z = 6% to z = 100% and the layer thicknesses are changed from 0.05 mon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65150517afc7d1b00c21fe828f7848b2
https://doi.org/10.1088/0268-1242/15/4/316
https://doi.org/10.1088/0268-1242/15/4/316
Autor:
J, Dufouleur, L, Veyrat, A, Teichgräber, S, Neuhaus, C, Nowka, S, Hampel, J, Cayssol, J, Schumann, B, Eichler, O G, Schmidt, B, Büchner, R, Giraud
Publikováno v:
Physical review letters. 110(18)
Quantum coherent transport of surface states in a mesoscopic nanowire of the three-dimensional topological insulator Bi(2}Se(3) is studied in the weak-disorder limit. At very low temperatures, many harmonics are evidenced in the Fourier transform of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::2e478e62f1d092ad0b826d55747887a8
https://pubmed.ncbi.nlm.nih.gov/23683235
https://pubmed.ncbi.nlm.nih.gov/23683235