Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Alexander S. Grabtchikov"'
Autor:
Mikhail V. Korolkov, Inna A. Khodasevich, Alexander S. Grabtchikov, Valentin A. Orlovich, Dmitri Mogilevtsev
Publikováno v:
Applied Sciences, Vol 14, Iss 23, p 10888 (2024)
Here, we present a novel method for the separation of overlapping emission spectral lines corresponding to nonlinear processes, which differ by effective nonlinearity with respect to the pump field power. The method exploits the factorization of wave
Externí odkaz:
https://doaj.org/article/e0fb5b42635d45c1a6e88630ff38a7bf
Publikováno v:
Journal of Non-Crystalline Solids: X, Vol 11, Iss, Pp 100065-(2021)
We report an experimental observation of the upconversion in fluorophosphate glasses doped with different concentrations of Tm3+ ions (from 1020 to 1015 ion/cm3) and a constant content of Yb3+ ions (1021 ion/cm3) when pumped by a diode laser with a w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36d3122b8a4b74eccce29e914fd45806
https://doi.org/10.1016/j.nocx.2021.100065
https://doi.org/10.1016/j.nocx.2021.100065
Publikováno v:
Journal of Luminescence. 235:118033
A series of new fluorophosphate glasses co-doped with Er3+/Yb3+ions with composition 5 Ba(PO3)2–(90-x)(AlF3 –CaF2 –MgF2 –BaF2–SrF2)–5YbF3-xErF3, where x = 0, 0.1, 0.5, 1.0, 2.0, 3.0, 5.0 (mol.%) were developed. Impact of the Er3+ ions con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c968e792209e19fbf284bf08b2d6ded
https://doi.org/10.1016/j.jlumin.2021.118033
https://doi.org/10.1016/j.jlumin.2021.118033
Autor:
Dmitri Mogilevtsev, I. A. Khodasevich, M. V. Korolkov, Elena Kolobkova, Alexander S. Grabtchikov
Here we report and discuss the avalanche-like up-conversion behavior in absence of the avalanche. We experimentally observed significant changes in the slope of the curve for the intensity dependence of up-conversion luminescence of erbium ions in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36837ddc4c2c7788f7f954f0b09d50ee
Autor:
Nikolay Nikonorov, Elena Kolobkova, I. A. Khodasevich, Alexander S. Grabtchikov, Mikhail V. Korolkov, A. N. Babkina
Publikováno v:
Optical Materials. 109:110279
Frequency upconversion into green and red luminescence in fluorophosphate glasses doped with Er3+ ions (1021 to 1016 ion/cm3) and Yb3+ ions (1021 ion/cm3) while pumped with a 970 nm diode laser is presented. The red upconversion emission results from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78c0580a3394dd269cc09bba286dd4bb
https://doi.org/10.1016/j.optmat.2020.110279
https://doi.org/10.1016/j.optmat.2020.110279
Autor:
S.V. Voitikov, Munir M. El-Desouki, R. V. Chulkov, P. V. Shpak, E.A. Cheshev, V. A. Orlovich, V. I. Dashkevich, Alexander S. Grabtchikov
Publikováno v:
Optics Communications. 351:1-8
We have investigated the self-Raman and intracavity Raman frequency conversion of the end-diode-pumped acoustooptic Q-switched Nd:YVO 4 laser radiation to eye-safe radiation. The 1st Stokes oscillation in YVO 4 (Nd:YVO 4 ), KGd(WO 4 ) 2 , PbWO 4 , an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed77f46dddd5ba6b428c3d2f15859a17
https://doi.org/10.1016/j.optcom.2015.04.033
https://doi.org/10.1016/j.optcom.2015.04.033
Autor:
R. V. Chulkov, P. V. Shpak, N. Satti, A. K. Maini, A. Kushwaha, Pavel A Apanasevich, Alexander S. Grabtchikov, L. Agrawal, V. A. Orlovich, S.V. Voitikov
Publikováno v:
Optics Communications. 285:3659-3664
We demonstrate a passively Q-switched all-solid-state laser system with intracavity Raman frequency conversion to the eye-safe spectral region. Laser oscillation at the 1.064 μm wavelength with a pulse repetition rate of several kilohertz was provid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::980383ce44fbe5dfe62071ca2ba67261
https://doi.org/10.1016/j.optcom.2012.04.048
https://doi.org/10.1016/j.optcom.2012.04.048
Autor:
Alexander S. Grabtchikov, Anton Kananovich, V. A. Orlovich, Alexander Demidovich, Miltcho B. Danailov
Publikováno v:
Laser Physics Letters. 7:573-578
Quasi continuous-wave (qCW) yellow emission (pulse duration 5 ms, repetition rate 20 Hz) at 559 nm is demonstrated through intracavity sum frequency generation (SFG) of Stokes and fundamental fields in Nd:YVO4 diode pumped self-Raman laser for the fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::895467dac55bab5cbe9981e4bc1c5033
https://doi.org/10.1002/lapl.201010034
https://doi.org/10.1002/lapl.201010034
Autor:
Sergei Vatnik, N.D. Hung, Miltcho B. Danailov, Alexander Demidovich, Sergei N Bagaev, Alexander S. Grabtchikov, V. A. Orlovich, P. V. Shpak
Publikováno v:
Laser Physics Letters. 7:555-559
The generation process in an end-diode-pumped microchip Nd:YAG/Cr:YAG laser with intracavity Raman conversion in barium nitrate crystal and with additional intracavity nonlinear conversion by harmonic generation and sum-mixing was studied. The genera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5a04371897a16d58d43f3fcce14ed63
https://doi.org/10.1002/lapl.201010022
https://doi.org/10.1002/lapl.201010022
Autor:
Pavel A Apanasevich, R. V. Chulkov, Alexander S. Grabtchikov, V. A. Lisinetskii, Dmitry Busko, V. A. Orlovich
Publikováno v:
Optics Communications. 283:1454-1458
A self-mode-locking at multiple Stokes generation in Raman lasers is reported. Trains of pulses with durations of down to 50 ps each have been obtained. The reasons for the self-mode-locking have been investigated numerically. Way to the further decr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc797f8f4507beee185ad94a7ed31845
https://doi.org/10.1016/j.optcom.2009.11.047
https://doi.org/10.1016/j.optcom.2009.11.047