Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Aleksandr Ya Karasik"'
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 848:012014
Refractive indices of SrF2 crystals doped with low concentrations of holmium, erbium, and thulium ions are investigated. These crystals are attractive as active laser media for developing planar waveguides for near and mid-IR spectral regions. It is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43ec6ad1cccede54431b3658d41997d1
https://doi.org/10.1088/1757-899x/848/1/012014
https://doi.org/10.1088/1757-899x/848/1/012014
Publikováno v:
Quantum Electronics. 42:595-599
Interband two-photon absorption in photorefractive strontium — barium niobate crystals SrxBa1-xNb2O6 (x = 0.61, 0.75), both pure and doped with Ni and La ions, is studied under excitation by trains of 523.5-nm picosecond laser pulses. The two-photo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e726dff54b62892414f281c21b3b35c
https://doi.org/10.1070/qe2012v042n07abeh014846
https://doi.org/10.1070/qe2012v042n07abeh014846
Autor:
A. N. Nakladov, D.V. Konyushkin, Vyacheslav V Osiko, V. A. Konyushkin, Maxim E. Doroshenko, Aleksandr Ya Karasik
Publikováno v:
Quantum Electronics. 43:60-62
Ceramic and crystalline weakly guiding optical fibres with the core – cladding refractive index difference of 10-2 – 10-4 are fabricated by a hot pressing method. The waveguides with one or several cores for operation in the spectral range 0.2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82c50854e871ebbad6f78591519c1cc5
https://doi.org/10.1070/qe2013v043n01abeh015006
https://doi.org/10.1070/qe2013v043n01abeh015006
Autor:
Aleksandr Ya Karasik, M Yu Glotova, Tasoltan T. Basiev, Alexander G. Papashvili, Valerii V Voronov
Publikováno v:
Quantum Electronics. 33:684-688
The polarised two-photon (IR) and one-photon (visible) luminescence excitation spectra of Nd3+ nanoclusters in CaF2 and SrF2 crystals are measured at 10 K using a :LiF colour centre laser tunable in spectral ranges 1090 ? 1230 nm and 545 ? 615 nm wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eacdb24cc107ae453dc4111cc900da08
https://doi.org/10.1070/qe2003v033n08abeh002478
https://doi.org/10.1070/qe2003v033n08abeh002478
Autor:
Vyacheslav V Osiko, Petr G. Zverev, Lyudmila I Ivleva, Tasoltan T. Basiev, Aleksandr Ya Karasik
Publikováno v:
Quantum Electronics. 33:331-334
An express technique is proposed for the study of stimulated Raman scattering (SRS) in crystals excited by long trains of picosecond pulses. SRS was studied in several crystals excited by 15-ps pulses from an Nd3+:CLNGG disordered garnet laser. SRS i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::588c6e425fba7a3a9d05d8eb0f8581a3
https://doi.org/10.1070/qe2003v033n04abeh002408
https://doi.org/10.1070/qe2003v033n04abeh002408
Publikováno v:
Quantum Electronics. 41:370-372
Spontaneous and stimulated Raman scattering (SRS) are studied in ZnWO4 crystals with a wolframite structure. The polarised Raman scattering spectra corresponding to all the six independent Raman tensor components are measured. The frequencies of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3177857513a576a2ae22585f1d6404a
https://doi.org/10.1070/qe2011v041n04abeh014527
https://doi.org/10.1070/qe2011v041n04abeh014527
Autor:
M. N. Ershkov, V M Lazorenko, Tasoltan T. Basiev, Alexander V. Fedin, Alexander G. Papashvili, V I Tovtin, S. A. Solokhin, Vyacheslav V Osiko, Aleksandr Ya Karasik, D S Chunaev, V N Kolokol'tsev, Sergei N. Smetanin, Andrey V. Gavrilov
Publikováno v:
Quantum Electronics. 39:385-387
The picosecond (based on Nd:YLF—LiF:F2- crystals) and nanosecond (Nd:YAG—LiF:F2-) laser technologies are proposed for perforating closely spaced micron holes in aluminium foil for microelectronics, medicine, and biology. Two-dimensional matrices
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5b68624b6b3fa868bef523045b39612
https://doi.org/10.1070/qe2009v039n04abeh013909
https://doi.org/10.1070/qe2009v039n04abeh013909
Autor:
Tasoltan T. Basiev, D S Chunaev, Sergei V Garnov, Aleksandr Ya Karasik, V. I. Vovchenko, A A Malyutin, Sergei M. Klimentov, V. A. Konyushkin, S B Kravtsov, Pavel A. Pivovarov, Alexander G. Papashvili
Publikováno v:
Quantum Electronics. 36:609-611
An amplifier of picosecond pulses with an output power up to 10{sup 10} W and an energy up to 30 mJ at 1180 nm is developed on the basis of F{sub 2}{sup -} : LiF colour-center crystals. A 3-5-ps, 0.03-mJ probe pulse at 1.18{mu}m was obtained upon int
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f312828df3333e69370670788146656
https://doi.org/10.1070/qe2006v036n07abeh013171
https://doi.org/10.1070/qe2006v036n07abeh013171
Autor:
Tasoltan T. Basiev, Aleksandr Ya Karasik, Vyacheslav V Osiko, V. A. Konyushkin, D S Chunaev, Alexander G. Papashvili
Publikováno v:
Scopus-Elsevier
A method for amplification of picosecond pulses in F2-:LiF crystals synchronously pumped by picosecond and nanosecond pulses is proposed and demonstrated. Due to two-stage amplification of a train of 22-ps, 1150-nm SRS pulses generated by a PbMoO4 cr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42f0af976bc6ae36ad252adfc2e8ad81
https://doi.org/10.1070/qe2005v035n04abeh003421
https://doi.org/10.1070/qe2005v035n04abeh003421
Publikováno v:
Quantum Electronics. 34:924-926
The appearance of hysteresis in the dependence of the efficiency of transient SRS on the energy of picosecond laser excitation is studied. The hysteresis appears due to the frequency-phase modulation of laser radiation which changes the SRS gain with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79ea6ffc3f0c6fe56de63152d63334b7
https://doi.org/10.1070/qe2004v034n10abeh002879
https://doi.org/10.1070/qe2004v034n10abeh002879