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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zaitsev A. I., Aleksandrovsky A. S., Kozhukhov A. S., Pokrovsky L. D., Atuchin V. V.
Заглавие : Growth, optical and microstructural properties of PbB4O7 plate crystals
Коллективы : SB RAS [28.14, 43.14]; President of the Russian Federation for the support of leading scientific schools [SS-4828.2012.2]; PSB RAS [2.5.2]; Ministry of Education and Science of the Russian Federation
Место публикации : Opt. Mater.: Elsevier Science, 2014. - Vol. 37. - P.298–301. - ISSN 0925-3467, DOI 10.1016/j.optmat.2014.06.012. - ISSN 1873-1252
Примечания : Cited References: 42. - This study is supported by SB RAS via Projects 28.14 and 43.14, and the Grant of the President of the Russian Federation for the support of leading scientific schools SS-4828.2012.2 and by PSB RAS, Grant 2.5.2. V.V.A. gratefully acknowledge the Ministry of Education and Science of the Russian Federation for financial support
Предметные рубрики: LEAD TETRABORATE
SINGLE-CRYSTAL
SUSCEPTIBILITIES
ANISOTROPY
STRONTIUM
SURFACES
RAMAN
Ключевые слова (''Своб.индексиров.''): pbb4o7--czochralski growth--facet--rheed--afm
Аннотация: Centimeter-sized optical quality plate-like PbB4O7 crystals have been grown by Czochralski method. The fundamental absorption edge has been found at 237 nm (corresponding bandgap 5.75 eV) with the distinct sideband protruding up to 300 nm. The crystals are well faceted with the (100), (010) and (101) planes, (100) surfaces being mostly developed. The etching in diluted nitric acid (5 wt.%) at the temperature of 90 °C have been used to reveal the defect structure and remove melt residuals. The (100) surface shows the presence of etching pits and twin boundaries. The Kikuchi line pattern and developed microrelief with the roughness of ~8 nm have been observed by RHEED and AFM, respectively.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Aleksandrov K. S., Zamkov A. V., Zaitsev A. I., Turchin P. P., Sysoev A. M., Parfenov A. A.
Заглавие : Acoustical and acoustooptical properties of lead tetraborate single crystals
Место публикации : Phys. Solid State. - 2004. - Vol. 46, Is. 9. - P.1637-1638. - ISSN 1063-7834, DOI 10.1134/1.1799178
Примечания : Cited References: 6
Предметные рубрики: STRONTIUM
Аннотация: The velocities of bulk acoustic waves and the acoustooptical Q factors M-2 are measured. The results of these measurements are used for calculating the photoelastic coefficients of a lead tetraborate single crystal. (C) 2004 MAIK "Nauka/Interperiodica".
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zaitsev A. I., Radionov N. V., Cherepakhin A. V., Vasiliev A. D., Zamkov A. V.
Заглавие : Morphology of the polar twin structure in Czochralski grown α-SrB4O7 crystals
Коллективы : Grant of the President of the Russian Federation for the support of leading scientific schools [SS-924.2014.2]
Место публикации : J. Cryst. Growth: Elsevier Science, 2015. - Vol. 416. - P.17-20. - ISSN 0022, DOI 10.1016/j.jcrysgro.2015.01.004. - ISSN 18735002(eISSN)
Примечания : Cited References:15. - This study is supported by Grant of the President of the Russian Federation for the support of leading scientific schools SS-924.2014.2.
Предметные рубрики: TETRABORATE
STRONTIUM
SRB4O7
Ключевые слова (''Своб.индексиров.''): optical microscopy--czochralski method--borates--growth twins--nonlinear--optic materials
Аннотация: The arrangement of a polar twin structure in Czochralski grown α-SrB4O7 crystals has been investigated. The transversal twin boundaries are stretched along [ 1 0 1 ] and [ 1 0 0 ] directions. The lateral twin boundaries are parallel to ( 0 1 0 ) plane. The twin structures have an extension up to centimeter size in all directions. Supposedly, they originate from polysynthetic polar microtwins revealed to form in ( 1 0 1 ¯ ) and ( 1 ¯ 0 1 ¯ ) growth pyramids. The dimensions, planarity and thickness stability of each individual twin are favorable for organizing quasi-phase matching conditions for nonlinear optical doubling of high-aperture beams.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Trabs, Peter, Noack, Frank, Aleksandrovsky A. S., Zaitsev A. I., Radionov N. V., Petrov V.
Заглавие : Spectral fringes in non-phase-matched SHG and refinement of dispersion relations in the VUV
Место публикации : Opt. Express: Optical Society of America, 2015. - Vol. 23, Is. 8. - P.10091-10096. - ISSN 1094-4087, DOI 10.1364/OE.23.010091
Примечания : Cited References:11
Предметные рубрики: 2ND-HARMONIC GENERATION
CRYSTAL
STRONTIUM
SrB4O7
Аннотация: We consider second harmonic generation (SHG) of ultrashort pulses in the case of strong phase- and group-velocity mismatch. Spectral fringes appear in the second harmonic related to two delayed replicas of the fundamental pulse in the time domain. The fringe separation can be used to evaluate the group-velocity and refractive index of nonlinear crystals at extreme wavelengths. Experimental results with femtosecond pulses in SrB4O7 (SBO) are used to refine the Sellmeier equation describing the nc refractive index down to 160 nm, essential for the use of this unique nonlinear crystal for random quasi-phase-matching in the VUV.
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