Zobrazeno 1 - 10
of 15
pro vyhledávání: '"I. V. Beloussov"'
Publikováno v:
2018 IEEE 8th International Conference Nanomaterials: Application & Properties (NAP).
We demonstrate that in the study of time-resolved photoluminescence the signatures of biexcitons in QDs can manifest themselves even when the system is excited by long laser pulses with their duration of the order of several tens of picoseconds. To d
Autor:
I. V. Beloussov, D. A. Markov, Sergey V. Fedorov, A. V. Korovai, P. I. Khadzhi, Nikolay N. Rosanov
Publikováno v:
Optics and Spectroscopy. 107:581-585
A theoretical and numerical analysis of the transmission of phase-modulated laser pulses through a thin film with excitonic nonlinearity is performed. It is shown that, by choosing the modulation law, one can efficiently control the optical nonlinear
Publikováno v:
Solid State Communications. 134:135-138
The experimental situation in which excitons in Cu2O are pumped directly into a state with wave vector k → = 0 → by two counter-propagating laser pulses, and subsequently probed by a third, time-delayed, pulse has been theoretically investigated.
Autor:
I. V. Beloussov
Publikováno v:
Special Matrices, Vol 3, Iss 1 (2015)
The algebraic formulation of Wick’s theorem that allows one to present the vacuum or thermal averages of the chronological product of an arbitrary number of field operators as a determinant (permanent) of the matrix is proposed. Each element of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98c961313e7833d8091a960ca02226bb
Autor:
I. V. Beloussov, V. V. Frolov
Publikováno v:
physica status solidi (b). 206:249-255
The time evolution of an intense polariton wave has been studied in the framework of a microscopic approach. It has been shown that due to polariton–polariton scattering a significant polariton wave depletion takes place in a comparatively short ti
Autor:
I. V. Beloussov, Yu. M. Shvera
Publikováno v:
Zeitschrift f�r Physik B Condensed Matter. 90:51-64
A derivation of the equations describing kinetic and dynamic properties of a high-density polariton system excited in direct-gap semiconductors by an external laser field is given. The Keldysh diagram technique for non-equilibrium processes formulate
Autor:
Sergey V. Fedorov, A. V. Corovai, P. I. Khadzhi, I. V. Beloussov, D. A. Markov, Nikolay N. Rosanov
Publikováno v:
SPIE Proceedings.
A new lasing mechanism for semiconductors like CuCl, CuBr is proposed based on the two-photon pumping of biexcitons from the ground state of the crystal and generation or amplification of light in the region of M-band of luminescence due to the optic
Publikováno v:
SPIE Proceedings.
We propose and theoretically investigate a two-photon four wave mixing experiment to probe for BEC of excitons in Cu 2 O thin films. A relatively simple set of equations describing the dynamics of the system is obtained for a particular configuration
Autor:
I. V. Beloussov, D. A. Markov, Sergey V. Fedorov, A. V. Corovai, Nikolay N. Rosanov, P. I. Khadzhi
Publikováno v:
SPIE Proceedings.
A theoretical and numerical analysis of the transmission of phase modulated laser pulses through a thin film with excitonic nonlinearity is performed. It is shown that, by choosing the modulation law, one can efficiently control the optical nonlinear
Publikováno v:
SPIE Proceedings.
The possibility was investigated to compress and to split laser pulses at their nonlinear optical transmission through thin semiconductor films.