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    Čerenkov nonlinear diffraction in random nonlinear photonic crystal of strontium tetraborate / A. M. Vyunishev [et al.] // Appl. Phys. Lett. - 2012. - Vol. 101, Is. 21. - Ст. 211114, DOI 10.1063/1.4767385. - Cited References: 29. - The work was supported by RFBR through the Grant No. 12-02-31167, by the Ministry of Education and Science of Russian Federation (Contract No. 14.B37.21.0730 and Grant No. 2.1.1/3455), by RAS Projects 24.29 and 24.31, by PSB RAS Projects 2.5.2 and 3.9.5, by SB RAS Projects 43 and 101, and by SFU Grant F12. . - ISSN 0003-6951
Рубрики:
POLED LITHIUM-NIOBATE
   2ND-HARMONIC GENERATION
   BARIUM NIOBATE
   PULSES
Аннотация: Čerenkov-type second harmonic generation of femtosecond pulses in random one-dimensional nonlinear photonic crystal of strontium tetraborate is investigated experimentally and theoretically. Sidebands in angular-spectral dependence of generated second harmonic were detected and found to be in perfect agreement with calculations. Spectral maximum of generated radiation experiences deviation from Čerenkov relation due to influence of nonlinear photonic crystal structure. Pulse duration and local spectrum of Čerenkov second harmonic are measured and found to be in fair agreement with each other.

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

Доп.точки доступа:
Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Zaitsev, A. I.; Зайцев, Александр Иванович; Slabko, V. V.; Слабко, Виталий Васильевич
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Arkhipkin, V. G.
Effect of electromagnatically induced transparency on spectrum of defect modes of photonic crystal - art. no. 67292H / V. G. Arkhipkin, S. A. Myslivets, I. V. Timofeev ; ed.: VN Belyi, KN Drabovich, KN Drabovich ; International Conference on Coherent and Nonlinear Optics (2007) // ICONO 2007: Coherent and nonlinear optical phenomena. Ser. proceedings of the society of photo-optical instrumentation engineers (SPIE) / International Conference on Coherent and Nonlinear Optics (2007) : SPIE-Int. Soc. Optical Engineering, 2007. - Vol. 6729. - P. H7292-H7292, DOI 10.1117/12.751966. - Cited References: 33 . - ISBN 0277-786X. - ISBN 978-0-8194-6886-4

РУБ Optics
Рубрики:
ELECTROMAGNETICALLY INDUCED TRANSPARENCY
   NONLINEAR OPTICS
   COHERENT MEDIA
   LIGHT
   MICROCAVITIES
   PULSES
Кл.слова (ненормированные):
photonic crystal -- defect mode -- photonic band gap -- localized mode -- electromagnetically induced transparency -- Defect mode -- Electromagnetically induced transparency -- Localized mode -- Photonic band gap -- Photonic crystal -- Crystal defects -- Dispersion (waves) -- Electromagnetic field effects -- Transparency -- Photonic crystals
Аннотация: The effect of electromagnetically induced transparency on the spectrum of defect modes of one-dimensional photonic crystal is discussed theoretically. Narrowing of defect mode linewidth is predicted due to nonabsorbing highly dispersive medium in defect layer.

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Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович; Timofeev, I. V.; Тимофеев, Иван Владимирович; Belyi, VN \ed.\; Drabovich, K. N. \ed.\; Архипкин, Василий Григорьевич; International Conference on Coherent and Nonlinear Optics(2007)
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Zobov, V. E.
On time-optimal NMR control of states of qutrits represented by quadrupole nuclei with the spin I=1 / V. E. Zobov, V. P. Shauro // J. Exp. Theor. Phys. - 2011. - Vol. 113, Is. 2. - P. 181-191, DOI 10.1134/S1063776111060094. - Cited References: 48. - This work was supported by the Russian Foundation for Basic Research (project no. 09-07-00138) and the Dynasty Foundation. . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
QUANTUM COMPUTATION
   MAGNETIC-RESONANCE
   ALGORITHMS
   ELEMENTS
   PULSES
   DESIGN
   QUDITS
   GATES
Кл.слова (ненормированные):
Logical operators -- Nuclear spins -- Numerical optimizations -- Optimality -- Physical parameters -- Quadrupole nuclei -- Qutrits -- Radio frequencies -- RF pulse -- Three level systems -- Time dependence -- Time-optimal -- Computer control systems -- Computer simulation -- Fourier transforms -- Optimization -- Quantum computers -- Resonance -- Nuclear quadrupole resonance
Аннотация: Elementary logical operators (selective rotation, Fourier transform, controllable phase shift, and SUM gate) are considered for a quantum computer based on three-level systems (qutrits) represented by nuclear spins I = 1 under nuclear magnetic resonance conditions. The computer simulation of the realization of these operators by means of simple and composite selective radiofrequency (RF) pulses and optimized RF pulses is performed. The time dependence of the amplitude of last pulses is found by numerical optimization at different durations. Two variants are proposed for realization of a two-qutrit SUM gate by using one-qutrit or two-qutrit optimized RF pulses. The calculated time dependences of realization errors were used to study the time optimality of different methods for obtaining gates, proposed earlier and in this paper. The advantages and disadvantages of each of the methods are evaluated for different values of physical parameters.

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Держатели документа:
[Zobov, V. E.
Shauro, V. P.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
L.V. Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Shauro, V. P.; Шауро, Виталий Павлович; Зобов, Владимир Евгеньевич
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