Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Ivan S. Manak"'
Publikováno v:
Quantum Electronics. 40:195-198
The energy levels, wave functions, and matrix elements of optical dipole transitions are calculated numerically for superlattice quantum-cascade structures. The effect of spectral broadening on the shape of emission spectra is estimated and semipheno
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b053080d6ce3dcdc2ea55b067e5f470e
https://doi.org/10.1070/qe2010v040n03abeh014185
https://doi.org/10.1070/qe2010v040n03abeh014185
Autor:
Ivan S. Manak, Dmitrii V. Ushakov
Publikováno v:
Optics and Spectroscopy. 104:767-771
Energy levels, wave functions, and matrix elements of optical dipole transitions have been numer- ically calculated for superlattice quantum-cascade structures. An expression for the gain has been obtained with regard to the complete set of energy le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fd374cb5d1e490d02b1d10cfcc4245e
https://doi.org/10.1134/s0030400x08050202
https://doi.org/10.1134/s0030400x08050202
Autor:
Dmitrii V. Ushakov, Ivan S. Manak
Publikováno v:
Journal of Applied Spectroscopy. 74:892-896
For two periods of quantum-cascade laser structures, we propose a system of closed balance equations that make it possible to calculate the occupancy of the energy levels, the quasi-Fermi levels, and also the injection current density taking into acc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f27714ec4380c2659154f93e1d13d8db
https://doi.org/10.1007/s10812-007-0138-0
https://doi.org/10.1007/s10812-007-0138-0
Publikováno v:
Journal of Applied Spectroscopy. 71:209-214
The polarization characteristics of the radiation produced by a quantum-well heterolaser with a nonselective resonator were considered theoretically (with account for spectral broadening) at different values of the loss coefficient. The dependence of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::493a6addb5d9fddf62d2f061ba0cb94e
https://doi.org/10.1023/b:japs.0000032876.92585.c0
https://doi.org/10.1023/b:japs.0000032876.92585.c0
Publikováno v:
Journal of Applied Spectroscopy. 71:73-76
The influence of the parameter of amplitude-phase coupling for nonlinear amplification on the phase-frequency characteristics of an injection laser in the regime of pumping current modulation has been investigated theoretically. The parameter is defi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b61505ee25c7ce11ac80e8146eb53e2e
https://doi.org/10.1023/b:japs.0000025351.43584.c9
https://doi.org/10.1023/b:japs.0000025351.43584.c9
Publikováno v:
Optics and Spectroscopy. 94:469-475
Spectral characteristics of a two-section laser structure with δ-doping active regions are studied theoretically. The wide range of tuning of the lasing wavelength is primarily related to specific characteristics of the gain spectra of n-i-p-i cryst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6362606425217dd2461aa50f71ba84e
https://doi.org/10.1134/1.1563696
https://doi.org/10.1134/1.1563696
Publikováno v:
Journal of Applied Spectroscopy. 70:115-121
Taking into account the density state tails appearing due to fluctuations of impurity concentrations, the spontaneous emission spectra of doped semiconductor superlattices are calculated. In the framework of the model developed, the explanation of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1af18e34b52aa4f51010206c4e194578
https://doi.org/10.1023/a:1023236912043
https://doi.org/10.1023/a:1023236912043
Publikováno v:
Journal of Applied Spectroscopy. 68:656-662
For doped semiconductor superlattices we have analyzed the effects of absorption saturation and change in the refractive index depending on the level of their excitation and structure parameters. The calculations were carried out with account for the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ff081de7a559a3145c7f54b67d468a3
https://doi.org/10.1023/a:1012586425501
https://doi.org/10.1023/a:1012586425501
Publikováno v:
Journal of Applied Spectroscopy. 66:820-825
The density of energy states is calculated for alloyed semiconductor superlattices for different excitation levels with cllowance for the effects of screening and fluctuations of impurity concentrations. The influence of the state density tails on sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ace6deff2cea0934660521f10f176ec4
https://doi.org/10.1007/bf02675238
https://doi.org/10.1007/bf02675238
Publikováno v:
Journal of Applied Spectroscopy. 66:787-793
An analysis of the power-current and tuning characteristics of asymmetric multiple-layer inhomogeneously pumped quantum-well lasers with mode selection in the external resonator was performed. It is shown that the choice of the parameters of the barr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::519c8d68e1303a46f3e69272ed9716c6
https://doi.org/10.1007/bf02675233
https://doi.org/10.1007/bf02675233