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of 640
pro vyhledávání: '"Moloney, Jerome"'
We formulate a multi-physics model to describe the nonlinear propagation of a femtosecond, near-infrared, tightly focused laser pulse in a transparent dielectric. The application of our model to the case of bulk sapphire shows that even under extreme
Externí odkaz:
http://arxiv.org/abs/2306.12524
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
Publikováno v:
Nanophotonics 7(10), 1663-1668 (2018)
Designing the shape of silicon nanoparticles has been shown to be an effective approach to increasing overlap between electric and magnetic dipole resonances thereby achieving directional scattering and decrease of reflection. Variations of disk diam
Externí odkaz:
http://arxiv.org/abs/1812.09465
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
Publikováno v:
Appl. Phys. Lett. 111, 182103 (2017)
The electronic structure of bulk GaAs$_{1-x}$Bi$_x$ systems for different atomic configurations and Bi concentrations is calculated using density functional theory. The results show a Bi-induced splitting between the light-hole and heavy-hole bands a
Externí odkaz:
http://arxiv.org/abs/1709.09983
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