Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Pshenichnyuk, Ivan A."'
Autor:
Pshenichnyuk, Ivan A., Farooq, Muneeb, Zemtsov, Daniil S., Zhigunov, Denis M., Kosolobov, Sergey S., Drachev, Vladimir P.
We investigate theoretically photonic chips with monolithically integrated blue light sources. According to our evaluations, a group-III nitride light emitting heterostructure can be efficiently combined with silicon nitride waveguiding layers. Low l
Externí odkaz:
http://arxiv.org/abs/2412.04198
Integrated optical devices that can realize a threshold filtration of signals are in demand in photonics. In particular, they play a key role in neuromorphic chips, acting as optical neurons. A list of requirements exist for thresholders to be practi
Externí odkaz:
http://arxiv.org/abs/2406.16798
Autor:
Pshenichnyuk, Ivan A., Yousry, Fahmy, Zemtsov, Daniil S., Kosolobov, Sergey S., Drachev, Vladimir P.
We investigate an optical switching mechanism for applications in active integrated photonic circuits. The mechanism utilizes a large nonlinearity of indium-tin-oxide (ITO) in epsilon-near-zero (ENZ) regime. The effect of optically induced switching
Externí odkaz:
http://arxiv.org/abs/2309.03305
A set of grating couplers that convert plane waves into odd pairs of plasmons supported by extremely thin layers of doped indium tin oxide is designed. The inverse design approach is implemented to improve the efficiency of ordinary periodical couple
Externí odkaz:
http://arxiv.org/abs/2104.13088
Autor:
Pshenichnyuk, Ivan A., Nazarikov, Gleb I., Kosolobov, Sergey S., Maimistov, Andrei I., Drachev, Vladimir P.
Publikováno v:
Physical Review B 100, 195434, 2019
An efficient electro-optical modulation has been demonstrated here by using an edge plasmon mode specific for the hybrid plasmonic waveguide. Our approach addresses a major obstacle of the integrated microwave photonics caused by the polarization con
Externí odkaz:
http://arxiv.org/abs/2001.03578
Autor:
Kosolobov, Sergey, Nazarikov, Gleb, Sitnikov, Sergey, Pshenichnyuk, Ivan, Fedina, Ludmila, Latyshev, Alexander
Self-diffusion and impurity diffusion both play crucial roles in the fabrication of semiconductor nanostructures with high surface-to-volume ratios. However, experimental studies of bulk-surface reactions of point defects in semiconductors are strong
Externí odkaz:
http://arxiv.org/abs/1903.12513
Akademický článek
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We investigate charge transport in pentacene-graphene nanojunctions employing density functional theory (DFT) electronic structure calculations and the Landauer transport formalism. The results show that the unique electronic properties of graphene s
Externí odkaz:
http://arxiv.org/abs/1212.3826
Publikováno v:
J. Chem. Phys. 135, 244506 (2011)
The multilayer multiconfiguration time-dependent Hartree (ML-MCTDH) theory within second quantization representation of the Fock space, a novel numerically exact methodology to treat many-body quantum dynamics for systems containing identical particl
Externí odkaz:
http://arxiv.org/abs/1103.4945
Autor:
Pshenichnyuk, Ivan A., Čížek, Martin
We propose a model for a molecular junction with internal anharmonic torsional vibrations interacting with an electric current. The Wangsness-Bloch-Redfield master equation approach is used to determine the stationary reduced density matrix of the mo
Externí odkaz:
http://arxiv.org/abs/1007.4826