Zobrazeno 1 - 10
of 58
pro vyhledávání: '"V. I. Dashkevich"'
Autor:
V. I. Dashkevich, G. I. Timofeeva, V. A. Orlovich, P. A. Apanasevich, L. E. Batay, R. V. Chulkov
Publikováno v:
Journal of Applied Spectroscopy. 90:239-245
Publikováno v:
Journal of Applied Spectroscopy. 84:971-978
This is a comparative study of eye-safe extracavity KGd(WO4)2 (KGW) Raman lasers that convert multimode emission from pulsed Nd:KGW lasers operating on the 4F3/2 → 4I11/2 and 4F3/2 → 4I13/2 transitions into the third Stokes component at λ = 1500
Autor:
V. A. Orlovich, V. I. Dashkevich
Publikováno v:
Journal of Applied Spectroscopy. 84:40-45
The shape of the multimode Stokes pulse generated by an eye-safe KGd(WO4)2:Nd laser with self-frequency Raman conversion and active Q-switching was shown to depend on the inhomogeneity of the active-medium pump. The laser generated a short and undist
Publikováno v:
Journal of Applied Spectroscopy. 83:945-950
A passive way of eliminating optical feedback between a pump laser and an extracavity two-pass pumped Raman laser in a compact arrangement was demonstrated. Feedback was suppressed by arranging the circuit elements in a configuration where the pump-l
Autor:
Konstantin Yumashev, Pavel Loiko, V.E. Kisel, A.S. Yasukevich, Sergei N. Bagayev, Anatoly Pavlyuk, S. V. Kurilchik, V. A. Orlovich, V. I. Dashkevich, N. V. Kuleshov, Sergei Vatnik, N.V. Gusakova, I A Vedin
Publikováno v:
AIP Conference Proceedings.
We report on highly-efficient room-temperature lasing in 5at.%Tm:KLu(WO4)2 mini slabs with Nm and AT orientations side-pumped by a 50W diode bars. CW maximum output power of 16.7 W at 1910 nm has been demonstrated with optical and slope efficiencies
Publikováno v:
Journal of Applied Spectroscopy. 83:736-740
A simple method for optimizing the parameters of ring optical parametric generator cavities is proposed. Expressions describing the threshold and efficiency of continuous wave generation as functions of the cavity parameters at the frequencies of the
Autor:
Josep Maria Serres, Sergei Vatnik, Konstantin Yumashev, Xavier Mateos, V. A. Orlovich, V. I. Dashkevich, Sergei N Bagaev, S.V. Grigoriev, Pavel Loiko, N. V. Kuleshov, A.S. Yasukevich, Anatoly Pavlyuk, Elena Vilejshikova
Publikováno v:
Optical Materials. 57:1-7
We report on growth and detailed spectroscopic study of Eu3+-doped tetragonal sodium gadolinium double tungstate, Eu:NaGd(WO4)2, a new promising crystal for deep-red lasers. Large-volume crystal doped with 4.9 at.% Eu is grown by Czochralski method a
Autor:
R. V. Chulkov, Mikhail V Gorbunkov, V. A. Orlovich, A. L. Koromyslov, E. A. Cheshev, V. G. Tunkin, Yu. M. Popov, V V Bezotosnyi, V. I. Dashkevich
Publikováno v:
Bulletin of the Lebedev Physics Institute. 43:203-206
Transverse mode locking of the Stokes component generated in the mode of stimulated Raman scattering self-conversion by a pulsed diode end-pumped Nd:YVO4/Cr:YAG laser is implemented for the first time under conditions of frequency degeneracy of cavit
Publikováno v:
Journal of Applied Spectroscopy. 83:190-193
A simple method of accounting for transverse inhomogeneity of the pump and Stokes radiation beams in the description of stimulated Raman scattering (SRS) using intensity-transfer equations for interacting beams is proposed. Features of the method are
Autor:
Sergei Vatnik, Alexey Kornienko, Josep Maria Serres, Konstantin Yumashev, N. V. Kuleshov, Xavier Mateos, A.S. Yasukevich, Anatoly Pavlyuk, V. A. Orlovich, V. I. Dashkevich, Pavel Loiko, Sergei N Bagaev, Elena Vilejshikova, Elena Dunina
Publikováno v:
Journal of Luminescence. 168:102-108
We report on a comprehensive spectroscopic study of monoclinic Eu:KLu(WO4)2 crystal concerning its potential applications in red lasers. Optical absorption and stimulated-emission cross-section spectra are determined for this crystal for the principa