Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Vladimir I Kozlovskii"'
Publikováno v:
Physics of the Solid State. 60:1375-1380
Paramagnetic resonance of ZnSe: Fe single crystals was studied at 120 K. Parameters of the spin Hamiltonian were determined for the monoclinic dimer complex Fe3+–Cu+ and a second discovered Fe3+ center, which appears due to association of the iron
Autor:
D. S. Pytalev, A. V. Fokin, Yu. V. Korostelin, A. P. Potapov, G. S. Shakurov, M. Yu. Artyomov, Vladimir I Kozlovskii, V. A. Vazhenin
Publikováno v:
Physics of the Solid State. 59:1993-2001
The electron paramagnetic resonance (EPR) spectra of iron-doped ZnSe single crystals were studied. In addition to cubic Fe3+ and Mn2+ centers and also Fe2+, and Cr2+ centers, monoclinic Fe3+ complexes locally compensated by Cu+ ions were revealed. So
Autor:
S. D. Velikanov, N G Zakharov, Ya. K. Skasyrskii, A V Mukhin, K. V. Vorontsov, Yu. N. Frolov, A. V. Larionov, Vladimir I Kozlovskii, Yu. V. Korostelin, Mikhail P. Frolov, Yu P Podmar'kov
Publikováno v:
Bulletin of the Lebedev Physics Institute. 42:216-220
Pulse-periodic lasing at wavelengths of 2.8 and 3.3 µm is obtained in the Cr2+:CdSe single-crystal laser. In the region of 2.8 µm, the pumping conversion is 28% (more than 50% of the absorbed energy). In the region of 3.3 µm, lasing is achieved at
Autor:
Albert F. Adiyatullin, V. S. Krivobok, A. N. Minnullin, Vladimir I Kozlovskii, S. V. Shevtsov
Publikováno v:
Bulletin of the Lebedev Physics Institute. 40:198-204
The exciton states in Zn(Cd)Se/ZnMgSSe quantum wells with various degrees of diffusive spreading of interfaces are studied by optical spectroscopy methods. Luminescence lines of free excitons are identified. It is shown that, in addition to exciton l
Publikováno v:
Quantum Electronics. 42:583-587
We report pulsed 465-nm lasing in a longitudinally electron beam pumped Zn(Cd)Se/ZnMgSSe heterostructure with 30 quantum wells, grown by metalorganic vapour phase epitaxy. At an external spherical mirror radius of 30 mm, 3 % transmission of the mirro
Autor:
Ya. K. Skasyrskii, Mikhail P. Frolov, Vladimir I Kozlovskii, Yu. V. Korostelin, Yu. M. Popov, Yu. Rautiainen, Yu P Podmar'kov, O. G. Okhotnikov
Publikováno v:
Bulletin of the Lebedev Physics Institute. 39:181-184
An output power of 0.85 W with a differential efficiency with respect to absorbed pump power of 55.4% is achieved for a Cr2+:CdSe laser with a wavelength of 2.6 µm under optical pumping with a semiconductor disk laser with a wavelength of 1.98 µm.
Autor:
D V Vysotskii, Nickolai N. Elkin, B M Lavrushin, Vladimir I Kozlovskii, Anatoly P. Napartovich
Publikováno v:
Quantum Electronics. 41:769-775
A three-dimensional numerical model of a diode laser with a resonant grating of quantum wells (QWs) and an external mirror is developed and used to calculate diode laser pulses that are long compared to the time of reaching a stationary regime and ar
Publikováno v:
Bulletin of the Lebedev Physics Institute. 38:41-47
Cleavages of undoped nanoscale heterostructures with GaInP/AlGaInP and CdS/ZnSSe quantum wells were studied by scanning probe microscopy. A nanorelief formed on the cleavage surface due to elastic stresses in quantum wells was detected by contact met
Autor:
Yu. V. Korostelin, Yu P Podmar'kov, Mikhail P. Frolov, Tale Ilkham-Ogly Ragimov, M. Yu. Filipchuk, A. A. Voronov, A. I. Landman, Vladimir I Kozlovskii, V. G. Polushkin, Ya. K. Skasyrskii
Publikováno v:
Bulletin of the Lebedev Physics Institute. 37:169-172
Repetitive-pulse generation of the diode-pumped Er:YAG laser (λ =2 .94 μm) in the free mode and in the mode of cavity passive Q-switching was achieved using a Q-switch based on the Fe 2+ :ZnSe crystal. When using pump pulses 3 ms long, the pulse-av
Autor:
Yurii V Korostelin, Vladimir I Kozlovskii, M P Frolov, Yu P Podmar'kov, Yan K. Skasyrsky, A. I. Landman
Publikováno v:
Quantum Electronics. 40:7-10
Continuous-wave lasing is obtained for the first time in a Cr2+:CdS crystal pumped by a thulium fibre laser at 1908 nm. The output power of the laser at 2534 nm achieved 0.81 W with the slope efficiency with respect to the absorbed pump power equal t