Zobrazeno 1 - 10
of 442
pro vyhledávání: '"Koch Stephan W."'
Autor:
Schmid Christoph P., Langer Fabian, Schlauderer Stefan, Gmitra Martin, Fabian Jaroslav, Nagler Philipp, Schuller Christian, Korn Tobias, Hawkins Peter G., Steiner Johannes T., Huttner Ulrich, Koch Stephan W., Kira Mackillo, Huber Rupert
Publikováno v:
EPJ Web of Conferences, Vol 205, p 05011 (2019)
As conventional electronic is approaching its ultimate limits, tremendous efforts have been taken to explore novel concepts of ultrafast quantum control. Lightwave electronics - the foundation of attosecond science - has opened a spectacular perspect
Externí odkaz:
https://doaj.org/article/de65439827b64db79685d8bed991d451
Fully microscopic many-body models based on inputs from first principle density functional theory are used to calculate the carrier losses due to radiative- and Auger-recombinations in bulk tellurium. It is shown that Auger processes dominate the los
Externí odkaz:
http://arxiv.org/abs/2208.05532
Autor:
Fuchs, Christian, Limame, Imad, Reinhard, Stefan, Lehr, Jannik, Hader, Jörg, Moloney, Jerome V., Bäumner, Ada, Koch, Stephan W., Stolz, Wolfgang
The influence of the growth conditions as well as the device design on the device performance of (GaIn)As/Ga(AsSb)/(GaIn)As "W"-quantum well lasers is investigated. To this purpose, the epitaxy process is scaled to full two inch substrates for improv
Externí odkaz:
http://arxiv.org/abs/2012.10996
Autor:
Fuchs, Christian, Baeumner, Ada, Brueggemann, Anja, Berger, Christian, Moeller, Christoph, Reinhard, Stefan, Hader, Joerg, Moloney, Jerome V., Koch, Stephan W., Stolz, Wolfgang
This paper discusses the temperature-dependent properties of (GaIn)As/Ga(AsSb)/(GaIn)As W-quantum well heterostructures for laser applications based on theoretical modeling as well as experimental findings. A microscopic theory is applied to discuss
Externí odkaz:
http://arxiv.org/abs/2012.01522
The LDA-1/2 method is employed in density functional theory calculations for the electronic structure of III-V dilute bismide systems. For the representative example of Ga(SbBi) with Bi concentrations below $10 \%$, it is shown that this method works
Externí odkaz:
http://arxiv.org/abs/2008.04771
Autor:
Schneider, Lorenz Maximilian, Kuhnert, Jan, Schmitt, Simon, Heimbrodt, Wolfram, Huttner, Ulrich, Meckbach, Lars, Stroucken, Tineke, Koch, Stephan W., Fu, Shichen, Wang, Xiaotian, Kang, Kyungnam, Yang, Eui-Hyeok, Rahimi-Iman, Arash
Valley-selective optical selection rules and a spin-valley locking in transition-metal dichalcogenide (TMDC) monolayers are at the heart of "valleytronic physics", which exploits the valley degree of freedom and has been a major research topic in rec
Externí odkaz:
http://arxiv.org/abs/1905.02814
Autor:
Meckbach, Lars, Hader, Jörg, Neuhaus, Josefine, Huttner, Ulrich, Steiner, Johannes, Stroucken, Tineke, Moloney, Jerry V., Koch, Stephan W.
Publikováno v:
Phys. Rev. B 101, 075401 (2020)
The dynamics of band-gap renormalization and gain build-up in monolayer MoTe$_2$ is investigated by evaluating the non-equilibrium Dirac-Bloch equations with the incoherent carrier-carrier and carrier-phonon scattering treated via quantum-Boltzmann t
Externí odkaz:
http://arxiv.org/abs/1903.08553
A modified core-to-valence band maximum approach is applied to calculate band offsets of strained III/V semiconductor hetero junctions. The method is used for the analysis of (In,Ga)As/GaAs/Ga(As,Sb) multi-quantum well structures. The obtained offset
Externí odkaz:
http://arxiv.org/abs/1901.00667
For opto-electronic and photo-voltaic applications of perovskites, it is essential to know the optical properties and intrinsic losses of the used materials. A systematic microscopic analysis is presented for the example of methylammonium lead iodide
Externí odkaz:
http://arxiv.org/abs/1810.11225
There are currently intense efforts being directed towards extending the range and energy of long distance nonlinear pulse propagation in the atmosphere by moving to longer infrared wavelengths, with the purpose of mitigating the effects of turbulenc
Externí odkaz:
http://arxiv.org/abs/1810.07345