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Piezoelectric properties of glassceramic based on lithium tetraborate / A. M. Sysoev [et al.] // Ferroelectrics. - 1996. - Vol. 186, Is. 1. - P. 277-280, DOI 10.1080/00150199608218083. - Cited References: 4 . - ISSN 0015-0193

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter

Кл.слова (ненормированные):
Ceramic materials -- Crystal growth -- Dielectric properties -- Electroacoustic transducers -- Glass -- Hydrophones -- Lithium compounds -- Single crystals -- Acoustoelectric transducer -- Glass ceramic -- Lithium tetraborate -- Microcomposite materials -- Piezoelectric materials
Аннотация: The preparation and study of a glassceramic based on lithium tetraborate was carried out. It was shown that due to favourable piezoelectric properties this material has good prospects for use as acoustoelectric transducer in devices such as hydrophones.

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Доп.точки доступа:
Sysoev, A. M.; Сысоев, Анатолий Михайлович; Parshikov, S. A.; Zaitsev, A. I.; Зайцев, Александр Иванович; Zamkov, A. V.; Замков, Анатолий Васильевич; Aleksandrov, K. S.; Александров, Кирилл Сергеевич
}
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Acoustical and acoustooptical properties of lead tetraborate single crystals / K. S. Aleksandrov [et al.] // Phys. Solid State. - 2004. - Vol. 46, Is. 9. - P. 1637-1638, DOI 10.1134/1.1799178. - Cited References: 6 . - ISSN 1063-7834
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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Публикация на русском языке Акустические и акустооптические свойства монокристаллов тетрабората свинца [Текст] / К. С. Александров [и др.] // Физ. тверд. тела. - 2004. - Т. 46 Вып. 9. - С. 1586-1587

Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660062, Russia

Доп.точки доступа:
Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Zamkov, A. V.; Замков, Анатолий Васильевич; Zaitsev, A. I.; Зайцев, Александр Иванович; Turchin, P. P.; Sysoev, A. M.; Parfenov, A. A.
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    Random quasi-phase-matching in a nonlinear photonic crystal structure of strontium tetraborate / A. S. Aleksandrovsky [et al.] // Phys. Rev. A. - 2008. - Vol. 78, Is. 3. - Ст. 031802, DOI 10.1103/PhysRevA.78.031802. - Cited Reference Count: 20. - Гранты: This work was supported by RFBR Grant No. 02-0700497, Grants of the President of the Russian Federation for the support of leading scientific schools (No. SS-1011.2008.2 and No. SS-3818.2008.3), Grant No. RNP.2.1.1.1814, and the Interdisciplinary Integration project of SB RAS 33. - Финансирующая организация: RFBR [02-0700497]; Russian Federation [SS-1011.2008.2, SS-3818.2008.3, RNP.2.1.1.1814]; SB RAS 33 . - ISSN 1050-2947
Рубрики:
HARMONIC-GENERATION
   DOMAIN-STRUCTURE
Кл.слова (ненормированные):
Alkaline earth metals -- Crystal atomic structure -- Experiments -- Harmonic generation -- Photonic crystals -- Powders -- Random processes -- Strontium -- Angular dependences -- Enhancement factors -- Near ultraviolet -- Photonic Crystal structures -- Quasi phase-matching -- Second-harmonic generation -- Spectral dependences -- Tetra borate -- Crystal structure
Аннотация: Random quasi-phase-matching (RQPM) of the second-harmonic generation process is investigated experimentally and theoretically in a strongly randomized spontaneously grown nonlinear photonic crystal structure of strontium tetraborate. The thickness of domains in the structure is measured and employed in calculations of angular and spectral dependences of random quasi-phase-matching. Despite the great scale of randomness, the RQPM effect is preserved. The calculated enhancement factor due to RQPM is in excellent agreement with experiment, and good agreement between calculations and experiment is obtained for the shape of the angular dependence of RQPM. The calculated spectral dependence of RQPM consists of a number of narrow peaks, and a maximum enhancement factor is attained in the near ultraviolet. The band structure of randomized nonlinear photonic crystal is calculated.

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Держатели документа:
Akademgorodok, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660079, Russia

Доп.точки доступа:
Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Zaitsev, A. I.; Зайцев, Александр Иванович; Shakhura, I. E. ; Zamkov, A. V.; Замков, Анатолий Васильевич; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович
}
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Second harmonic generation in randomized domain structure of strontium tetraborate / A. M. Vyunishev, A. S. Aleksandrovsky, I. E. Shakhura [et al.] // V International Symposium "Modern problems of laser physics" : Technical digest : Novosibirsk, Russia, 24-30 August, 2008 / "Modern problems of laser physics", International Symposium (5 ; 2008 ; Aug ; Novosibirsk). - 2008. - p. 226

Доп.точки доступа:
Vyunyshev, A. M.; Вьюнышев, Андрей Михайлович; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Shakhura, I. E.; Zaitsev, A. I.; Зайцев, Александр Иванович; Zamkov, A. V.; Замков, Анатолий Васильевич; "Modern problems of laser physics", International Symposium(5 ; 2008 ; Aug ; Novosibirsk); "Современные проблемы лазерной физики", Международный симпозиум(5 ; 2008 ; авг. ; Новосибирск)
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Random quasi-phase-matching in a nonlinear photonic crystal structure of strontium tetraborate / A. S. Aleksandrovsky, A. M. Vyunishev, I. E. Shakhura [et al.] // PHYS. REV. A : APS, 2008. - P. 031802-1-031802-4DOI 10.1103/PhysRevA.78.031802. - Библиогр.: 20. - This work was supported by RFBR Grant No. 02-07-00497, Grants of the President of the Russian Federation for the support of leading scientific schools No. SS-1011.2008.2 and No. SS-3818.2008.3 , Grant No. RNP.2.1.1.1814, and the Interdisciplinary Integration project of SB RAS 33.

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Доп.точки доступа:
Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Shakhura, I. E.; Zaitsev, A. I.; Зайцев, Александр Иванович; Zamkov, A. V.; Замков, Анатолий Васильевич
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Characterization of Domain Structure in Strontium Tetraborate Crystals via Nonlinear Diffraction / A. S. Aleksandrovsky, A. M. Vyunishev [et al.] // Известия высших учебных заведений. Физика. - 2008. - Т. 51, № 10/2. - P120-125

Доп.точки доступа:
Aleksandrovsky, A.S.; Vyunishev, A.M.; Zaitesv, A.I.; Zamkov, A.V.
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Nonlinear photonic crystals of strontium tetraborate / A. S. Aleksandrovsky, I. E Shakhura, A. M. Vyunyshev [et al.] // V International Symposium "Modern problems of laser physics" : Technical digest : Novosibirsk, Russia, 24-30 August, 2008 / "Modern problems of laser physics", International Symposium (5 ; 2008 ; Aug ; Novosibirsk). - 2008. - p. 206

Доп.точки доступа:
Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Shakhura, I. E; Vyunyshev, A. M.; Вьюнышев, Андрей Михайлович; Zaitsev, A. I.; Зайцев, Александр Иванович; Zamkov, A. V.; Замков, Анатолий Васильевич; "Modern problems of laser physics", International Symposium(5 ; 2008 ; Aug ; Novosibirsk); "Современные проблемы лазерной физики", Международный симпозиум(5 ; 2008 ; авг. ; Новосибирск)
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Random quasi phase matching in domain structure of strontium tetraborate crystals / Shakhura I. E, Aleksandrovsky A.S., Vyunyshev A.M., Zaitsev A.I., Zamkov A.V. // V International Symposium "Modern problems of laser physics" : Technical digest : Novosibirsk, Russia, 24-30 August, 2008 / "Modern problems of laser physics", International Symposium (5 ; 2008 ; Aug ; Novosibirsk). - 2008. - p. 219-220

Доп.точки доступа:
Shakhura, I. E; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Vyunyshev, A. M.; Вьюнышев, Андрей Михайлович; Zaitsev, A. I.; Зайцев, Александр Иванович; Zamkov, A. V.; Замков, Анатолий Васильевич; "Modern problems of laser physics", International Symposium(5 ; 2008 ; Aug ; Novosibirsk); "Современные проблемы лазерной физики", Международный симпозиум(5 ; 2008 ; авг. ; Новосибирск)
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Nonlinear diffraction and random QPM in strontium tetraborate / A. S. Aleksandrovsky, A. M. Vyunyshev [et al.] // Proceedings of CAOL 2008 : 4th International Conference on Advanced Optoelectronics and Lasers. - Alushta, Crimea, 2008. - С. 398-400, DOI 10.1109/CAOL.2008.4671848 . - ISBN 9781424419746 (ISBN)

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Держатели документа:
L.V. Kirensky Institute of Physics
Siberian State University

Доп.точки доступа:
Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Shakhura, I. E.; Zaitsev, A. I.; Зайцев, Александр Иванович; Zamkov, A. V.; Замков, Анатолий Васильевич; International Conference on Advanced Optoelectronics and Lasers(4th ; 2008 ; Apr. 29 Sep. - 04 Oct. ; Alushta, Crimea)
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10.

Nonlinear optical processes in domain structures of strontium tetraborate / A. S. Aleksandrovsky [et al.] // Opt. Spectrosc. - 2009. - Vol. 107, Is. 3. - P. 359-362, DOI 10.1134/S0030400X09090070. - Cited References: 11 . - ISSN 0030-400X

РУБ Optics + Spectroscopy
Рубрики:
HARMONIC-GENERATION
CRYSTALS
Аннотация: The random quasi-phase-matching in irregular domain structures of strontium tetraborate has been investigated for nonlinear optical generation at 266 nm. The factor of increasing second-harmonic generation efficiency due to random quasi-phase-matching is determined. The spectral dependences of the second-harmonic generation are calculated. It is shown that its efficiency can be optimized at a fixed pump wavelength by rotating the domain structure.

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Доп.точки доступа:
Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Shakhura, I. E.; Zaitsev, A. I.; Зайцев, Александр Иванович; Zamkov, A. V.; Замков, Анатолий Васильевич; International Conference on Laser Optics(13 ; June 23-28, 2008 ; Petersburg, Russia)
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11.

Nonlinear optical processes in random structure of strontium tetraborate [Text] / A. S. Aleksandrovsky // Nonlin. Dynam. of Elect. Syst. (NDES 2009) : 22nd International Conference, NDES 2009, Como, Italy, Sept. 7-12, 2009 : proceedings. - Como, 2009. - P1

http://www.sfu?kras.ru/files/abstract.pdf.

Доп.точки доступа:
Aleksandrovsky, A.S.; "Nonlinear Dynamics of Electronic Systems", International conference(2009 ; Sept. ; Como, Italy)
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12.

    Tunable femtosecond frequency doubling in random domain structure of strontium tetraborate / A. S. Aleksandrovsky [et al.] // Opt. Commun. - 2009. - Vol. 282, Is. 11. - P. 2263-2266, DOI 10.1016/j.optcom.2009.02.070. - Cited Reference Count: 16. - Гранты: The work was supported by the RFBR Grant 09-02-00670, Grants of the President of the Russian Federation for the support of leading scientific schools (Nos. SS-1011.2008.2 and SS-3818.2008.3), Grant No. RNP.2.1.1.3455, and the Projects 2.5.2 of PSB RAS, Nos. 5 and 27.1 of SB RAS. - Финансирующая организация: RFBR [09-02-00670]; President of the Russian Federation [SS-1011.2008.2, SS-3818.2008.3]; PSB RAS [2.5.2]; SB RAS [5, 27.1]; [RNP.2.1.1.3455] . - ISSN 0030-4018
Рубрики:
2ND-HARMONIC GENERATION
   HARMONIC-GENERATION
   BARIUM NIOBATE
   CRYSTAL
Кл.слова (ненормированные):
Domain structures -- Femtosecond -- Frequency-doubling -- Harmonic frequencies -- Noncollinear -- Nonlinear photonic crystals -- Photonic structures -- Second harmonics -- Second-harmonic generations -- Spatial spectrum -- Tetraborate -- Harmonic generation -- Photonic crystals -- Strontium -- Harmonic analysis
Аннотация: Efficient tunable femtosecond phase-matched noncollinear second-harmonic generation in randomized nonlinear photonic crystal of strontium tetraborate is obtained. Spatial spectrum of nonlinear photonic structure is not flat but enables tuning of the harmonic frequency in the range from 355 to 460 nm. The narrowing of the bandwidth of second harmonic is found to be of order of 10-20%. (C) 2009 Elsevier B.V. All rights reserved.

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Держатели документа:
RAS, SB, LV Kirensky Phys Inst, Coherent Opt Lab, Krasnoyarsk 600036, Russia
Siberian Fed Univ, Krasnoyarsk 660079, Russia

Доп.точки доступа:
Aleksandrovsky, A.S.; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Zaitsev, A.I.; Zamkov, A. V.; Замков, Анатолий Васильевич; Slabko, V.V.
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13.

Conversion of radiation in nonlinear photonic crystals of strontium tetraborate / A. S. Aleksandrovsky [et al.] // CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference = Optics InfoBase Conference Papers. - 2009, DOI 10.1109/CLEOE-EQEC.2009.5196562 . - ISBN 9781424440801 (ISBN). - ISBN 21622701

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Держатели документа:
L. V. Kirensky Institute of Physics, Akademgorodok, 660036, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Slabko, V.V.; Zaitsev, A. I.; Зайцев, Александр Иванович; Zamkov, A. V.; Замков, Анатолий Васильевич; European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference(2009 ; Jun. ; 14-19 ; Munich)
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14.

Nonlinear photonic crystals of strontium tetraborate: Properties and conversion of radiation / A. S. Aleksandrovsky [et al.] // Proceedings of SPIE - The International Society for Optical Engineering. - 2010. - Vol. 7728: Nonlinear Optics and Applications IV (12 April 2010 through 15 April 2010, Brussels, ) Conference code: 81010, DOI 10.1117/12.853713 . - ISBN 0277786X (ISSN); 9780819482013 (ISBN)
Кл.слова (ненормированные):
nonlinear photonic crystal -- second harmonic generation -- strontium tetraborate -- As-grown -- Average power -- Domain shape -- Efficiency enhancement -- Femtoseconds -- Fourth harmonics -- Nonlinear diffraction -- Nonlinear optical process -- Nonlinear photonic crystals -- Quasi-phase-matched -- Second harmonic generation -- Tetraborate -- Ti: Sapphire laser -- Ti:sapphire oscillators -- Ferroelectricity -- Harmonic analysis -- Nonlinear optics -- Optical materials -- Photonic crystals -- Sapphire -- Strontium -- Harmonic generation
Аннотация: Random nonlinear photonic crystal (NPC) structures formed by as-grown domains in a non-ferroelectric strontium tetraborate (SBO) are investigated. The domain shape and orientation are similar to those in ferroelectric KTP. Nonlinear diffraction is the simplest way to detect, evaluate and characterize these structures. Reciprocal superlattice vectors spectra of NPC in SBO are very wide and enable broadband efficiency enhancement of nonlinear optical processes. Second harmonic (SH) generation of femtosecond Ti:sapphire oscillator radiation with 1.9% efficiency is obtained using nonlinear diffraction geometry. Random quasi phase matched generation at the wavelengths of fourth harmonic of Ti:sapphire laser is obtained with average power up to 1 ?W. © 2010 Copyright SPIE - The International Society for Optical Engineering.

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Держатели документа:
Kirensky Institute of Physics, Akademgorodok 50/38, 660036, Krasnoyarsk, Russian Federation
Siberian Federal University, Svobodniy 79, 660041, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Aleksandrovsky, A. S.; Zaitsev, A. I.; Cherepakhin, A. V.; Черепахин, Александр Владимирович; Vyunishev, A. M.; Rovsky, V. E.; Slabko, V. V.
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15.

    The trigonal polymorph of strontium tetraborate, beta-SrB4O7 [Text] / A. D. Vasiliev, A. V. Cherepakhin, A. I. Zaitsev // Acta Crystallogr. Sect. E.-Struct Rep. Online. - 2010. - Vol. 66, Part 6. - PI48-U132, DOI 10.1107/S1600536810019069. - Cited Reference Count: 22. - Гранты: We thank the State Program for Support of Leading Scientific Schools (grant LS-4645.2010.2.). - Финансирующая организация: Leading Scientific Schools [LS-4645.2010.2] . - JUN. - ISSN 1600-5368
Рубрики:
CRYSTAL-STRUCTURE
   SRB4O7
   LUMINESCENCE
   MODEL
Кл.слова (ненормированные):
Tetra
Аннотация: The asymmetric unit of the title compound, beta-SrB4O7, contains five Sr atoms (three located on a threefold rotation axis), twelve B and 21 O atoms. The structure is made up from BO3 triangles and BO4 tetrahedra in a 1:1 ratio. Pairs of BO3 triangles are linked to BO4 tetrahedra via common corners, forming chains. These chains are further linked to adjacent chains through corner-sharing, leading to a three-dimensional framework with channels running parallel to [001]. The Sr2+ ions reside in the channels and exhibit strongly distorted polyhedra The density of the beta-polymorph is considerably lower than that of beta-SrB4O7, which is constructed solely from BO4 tetrahedra.

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Держатели документа:
Inst Phys SB RAS, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Vasiliev, Alexander D.; Cherepakhin, Alexander V.; Zaitsev, Alexander I.
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16.

Nonlinear Photonic Crystals of Strontium Tetraborate: Properties and Conversion of Radiation / Aleksandrovsky A.S.Vyunishev A.M. [et al.] // Proc. SPIE. - 2010. - Vol.7728. - P772819-1–772819-8

Доп.точки доступа:
Aleksandrovsky, A.S.; Vyunishev, A.M.; Zaitsev, A.I.; Rovsky, V.E.; Slabko, V.V.; Cherepakhin., A.V.
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17.

Frequency doubling of ultrashort pulses in a nonlinear photonic strontium tetraborate crystal / A. M. V'yunyshev [et al.] // Bull. Lebedev Phys. Inst. - 2010. - Vol. 37, Is. 3. - P. 85-86, DOI 10.3103/S106833561003005X. - Cited References: 6 . - ISSN 1068-3356
Кл.слова (ненормированные):
second harmonic generation -- ultrashort pulses -- nonlinear photonic crystal -- Nonlinear photonic crystal -- Second harmonic generation -- Ultrashort pulses
Аннотация: The second harmonic generation (SHG) of the femtosecond titanium-sapphire laser radiation was experimentally studied in the mode of nonlinear diffraction in the nonlinear photonic strontium tetraborate crystal. The spectrum of reciprocal lattice vectors of domain structures includes components responsible for the efficient frequency-tunable SHG in the spectral range of 355-510 nm. The maximum SHG efficiency was 1.9%. The SHG spectrum narrowing does not exceed 10-20%. The measured spectral dependence of the nonlinear diffraction angle is in good agreement with calculation.

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Публикация на русском языке Удвоение частоты ультракоротких импульсов в нелинейном фотонном кристалле тетрабората стронция [Текст] / А. М. Вьюнышев [и др.] // Кратк. сообщ. по физ. / изд. орг. - 2010. - № 3. - С. 35-38

Доп.точки доступа:
V'yunyshev, A. M.; Aleksandrovskii, A. S.; Александровский, Александр Сергеевич; Cherepakhin, A. V.; Черепахин, Александр Владимирович; Rovskii, V. E.; Zaitsev, A. I.; Зайцев, Александр Иванович; Zamkov, A. V.; Замков, Анатолий Васильевич; All-Russian Youth School Seminar on Innovative Aspects of Basic Research on Urgent Problems of Physics(3 ; 2009 ; Oct. 25-30 ; Moscow)
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18.

Phase matched conversion of radiation in nonlinear photonic crystals of strontium tetraborate [Text] / A. S. Aleksandrovsky, A. M. Vyunishev [et al.] // Technical digest International conference ICONO/LAT 2010. - Казань, 2010. - P. 63

Доп.точки доступа:
Aleksandrovsky, A.S.; Vyunishev, A.M.; Zaitsev, A.I.; Ikonnikov, A.A.; Pospelov, G.I.; Slabko, V.V.; International Conference on Coherent and Nonlinear Optics(2010 ; Aug. ; 23-26 ; Казань); International Conference on Lasers, Applications, and Technologies(2010 ; Aug. ; 23-26 ; Казань)
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19.

Random quasi-phase-matched conversion of broadband radiation in a nonlinear photonic crystal / A. S. Aleksandrovsky [et al.] // Phys. Rev. A. - 2010. - Vol. 82, Is. 5, DOI 10.1103/PhysRevA.82.055806. - Cited Reference Count: 22. - Гранты: The work was supported by the Ministry of Education and Science of the Russian Federation (Contract 16.740.11.0150), Grant of the President of the Russian Federation for the support of leading scientific schools No. SS-4645.2010.2, Grant No. RNP.2.1.1.3455, Projects 2.5.2 and 3.9.1 of PSB RAS, and Projects No. 27.1 and No. 5 of SB RAS. A. M. Vyunishev is grateful for the support from Krasnoyarsk Regional Fund of Science and Technical Activity Support. - Финансирующая организация: Ministry of Education and Science of the Russian Federation [16.740.11.0150]; Russian Federation for the support of leading scientific schools [SS-4645.2010.2, RNP.2.1.1.3455]; PSB RAS [2.5.2, 3.9.1]; SB RAS [27.1, 5]; Krasnoyarsk Regional Fund of Science and Technical Activity . - ISSN 1050-2947
Кл.слова (ненормированные):
Broad spectrum -- Broadband radiation -- Femtosecond laser pulse -- Fundamental wave -- Nonlinear generation -- Nonlinear photonic crystals -- Quasi-phase-matched -- Quasi-phase-matched frequency doubling -- Red shift -- Shorter wavelength -- Tetraborate -- Tuning ranges -- Vacuum ultraviolets -- Band structure -- Crystal structure -- Strontium -- Ultrafast lasers -- Ultrashort pulses -- Photonic crystals
Аннотация: Radiation in the range 187.5-215 nm was generated via random quasi-phase-matched frequency doubling of femtosecond laser pulses in nonlinear photonic crystals of strontium tetraborate. Abroad spectrum of fundamental radiation favors the probing of the nonlinear photonic crystal band structure. The red shift of the band structure upon the fundamental wave-vector rotation was observed. No principal limitations of the tuning range at its shorter wavelength boundary from the nonlinear photonic crystal (NPC) material are found. Calculation shows that the NPC structure enables enhancement of nonlinear generation in the vacuum ultraviolet.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660079, Russia

Доп.точки доступа:
Aleksandrovsky, A.S.; Vyunishev, A.M.; Zaitsev, A.I.; Slabko, V.V.
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20.

Nonlinear optics of randomly structured strontium tetraborate / A. S. Aleksandrovsky, A. M. Vyunishev, A. I. Zaitsev [et al.] // CLEO/Europe-EQEC 2011 : IEEE, 2011. - P84
Аннотация: Strontium tetraborate (SBO) is attractive for nonlinear optics of short-wavelength range including VUV due to its transparency window [1]. Nonlinear coefficients of SBO are the largest among crystals transparent below 270 nm. Angular phase matching is, however, absent in SBO, and the only possibility of conversion enhancement is to employ self-organized random nonlinear photonic crystal (NPC) structures discovered in SBO. These NPC are capable of two limiting cases of phase matching, namely, nonlinear diffraction (NLD) and random quasi phase matching (RQPM). NLD allows detection of NPCs and testing their reciprocal superlattice vectors (RSV) spectra via variation of the incidence angle. NLD conversion of broadband fs pulses of modest power from Ti:S oscillator results in 1.9% efficiency, being, to our knowledge, the best result obtained for this type of phase matching. RSV spectrum is wide enough to ensure NLD tunability from 355 to 510 nm. This spectrum is not flat, but the narrowing of the generated radiation spectrum due to non-flatness is rather modest.

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Доп.точки доступа:
Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Zaitsev, A. I.; Зайцев, Александр Иванович; Ikonnikov, A. A.; Иконников, Антон Андреевич; Pospelov, G. I.; Slabko, V. V.; Слабко, Виталий Васильевич; Conference on Lasers and Electro-Optics Europe(2011 ; Jun. 21-25); European Quantum Electronics Conference(12 ; 2011 ; Jun. 21-25)
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