Zobrazeno 1 - 10
of 152
pro vyhledávání: '"R. Schmidt-Grund"'
Autor:
O. Herrfurth, S. Richter, M. Rebarz, S. Espinoza, J. Zúñiga-Pérez, C. Deparis, J. Leveillee, A. Schleife, M. Grundmann, J. Andreasson, R. Schmidt-Grund
Publikováno v:
Physical Review Research, Vol 3, Iss 1, p 013246 (2021)
The full transient dielectric-function (DF) tensor of ZnO after UV-laser excitation in the spectral range 1.4–3.6 eV is obtained by measuring an m-plane-oriented ZnO thin film with femtosecond (fs)-time-resolved spectroscopic ellipsometry. From the
Externí odkaz:
https://doaj.org/article/3f2d17ddbd2247c5800bf0cd2e1d958a
Publikováno v:
APL Materials, Vol 3, Iss 10, Pp 106106-106106-9 (2015)
The dielectric tensor of Ga2O3 in the monoclinic (β) phase was determined by generalized spectroscopic ellipsometry in a wide spectral range from 0.5 eV to 8.5 eV as well as by density functional theory calculations combined with many-body perturbat
Externí odkaz:
https://doaj.org/article/397b7c60174848d898cdb9bb4069eac4
Akademický článek
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Autor:
Stefan Zollner, Steffen Richter, Shirly Espinoza, Jakob Andreasson, Mateusz Rebarz, Oliver Herrfurth, R. Schmidt-Grund
Publikováno v:
Applied Physics Letters. 115:052105
Transient dielectric functions with a 120 fs time resolution of Ge, Si, and InP were acquired from 1.7 to 3.5eV with a femtosecond pump-probe rotating-compensator ellipsometer. The intensity of the pump laser (with 1.55, 3.10, or 4.65eV photon energy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::108782ce13d5b45c2b308c99bc2e9c20
https://doi.org/10.1063/1.5109927
https://doi.org/10.1063/1.5109927
Autor:
R. Schmidt-Grund, Marius Grundmann, Friedhelm Bechstedt, Christian Kranert, Chris Sturm, Jürgen Furthmüller
Publikováno v:
Physical Review B. 94
We apply a generalized model for the determination and analysis of the dielectric function of optically anisotropic materials with color dispersion to phonon modes and show that it can also be generalized to excitonic polarizabilities and electronic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8562cad35aa4049dc7f6a495268a71bc
https://doi.org/10.1103/physrevb.94.035148
https://doi.org/10.1103/physrevb.94.035148
Publikováno v:
Superlattices and Microstructures. 47:19-23
We report on the observation of strong coupling between excitons and cavity photons in a ZnO-based microresonator up to room temperature. The ZnO-based resonator was grown by means of pulsed laser deposition (PLD) on c-sapphire substrate and consists
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7a6add67d91059ec73c51a289da62c6
https://doi.org/10.1016/j.spmi.2009.06.007
https://doi.org/10.1016/j.spmi.2009.06.007
Autor:
Marius Grundmann, Bernd Rheinländer, Holger Hochmuth, J. Sellmann, Ch. Sturm, Ch. Czekalla, Michael Lorenz, R. Schmidt-Grund, Jörg Lenzner
Publikováno v:
physica status solidi c. 5:1240-1243
ZrO2-Al2O3 Bragg reflectors for future application in ZnO based resonators grown by pulsed laser deposition on c-plane sapphire and silicon substrates show a reflectivity up to 99.8% with a layer pair number of 12.5. Layer thicknesses obtained from s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59ce29db46354b2a9ef5bbaaf6546616
https://doi.org/10.1002/pssc.200777875
https://doi.org/10.1002/pssc.200777875
Autor:
T. Gühne, V. Gottschalch, G. Leibiger, H. Herrnberger, J. Kovác, R. Schmidt-Grund, B. Rheinländer, D. Pudis
Publikováno v:
Laser Physics. 16:441-446
In this paper, we report on the design and optical properties of laser diodes with an emission wave-length of ∼1170 nm based on an (InGa)As/GaAs double quantum well active layer. The back and front facet of the laser diodes were coated with SiOx di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acdb5c6a4d09ba163a581ca03fa583ac
https://doi.org/10.1134/s1054660x06030042
https://doi.org/10.1134/s1054660x06030042
Autor:
C. Kranert, T. Böntgen, R. Schmidt-Grund, M. Brandt, S. Schöche, C. Sturm, H. Hochmuth, M. Lorenz, M. Grundmann, Jisoon Ihm, Hyeonsik Cheong
Publikováno v:
AIP Conference Proceedings.
We report on the investigation of the structural properties of BaTiO3(BTO)/ZnO heterostructures grown by pulsed laser deposition (PLD). Special emphasis is devoted to the growth properties of BTO on ZnO and the BTO/ZnO interface. X‐ray diffraction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69af6d09939173b4c59fc077305d141b
https://doi.org/10.1063/1.3666448
https://doi.org/10.1063/1.3666448