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Electro- and magneto-optical switching of defect modes in one- dimensional photonic crystals / V. G. Arkhipkin [et al.] // J. Exp. Theor. Phys. - 2011. - Vol. 112, Is. 4. - P. 577-587, DOI 10.1134/S1063776111040017. - Cited References: 35. - We thank A. M. Parshin for help with the magneto-optical measurements. This work was supported by grant no. NSC98-2923-M-033-001-MY3; nos. 27.1 and 9.1 RAS; nos. 5 and 144 SB RAS; State contract no. 02.740.11.0220 ("Scientific and Scientific-Pedagogical Personnel of Innovational Russia" Federal Goal-Oriented Program). . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
NEMATIC LIQUID-CRYSTALS
Кл.слова (ненормированные):
Crossed polarizers -- Defect mode -- Experimental data -- Magnetic field strengths -- Magneto-optical -- Polarized light waves -- Transmission spectrums -- Defects -- Light transmission -- Magnetic fields -- Magnetos -- Optical switches -- Photonic crystals
Аннотация: The transmission spectra of polarized light waves in a photonic crystal/liquid crystal (PC/LC) cell placed between crossed polarizers and controlled by an electric or magnetic field have been studied experimentally and theoretically. Electro- and magneto-optical switching based on the interference of polarized defect modes has been demonstrated. The transmission spectra of the PC/LC cell have been calculated as a function of the voltage applied to the LC layer and the magnetic field strength. The results of the calculations agree well with the experimental data.

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Держатели документа:
[Arkhipkin, V. G.
Gunyakov, V. A.
Myslivets, S. A.
Zyryanov, V. Ya.
Shabanov, V. F.] Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Arkhipkin, V. G.
Gunyakov, V. A.
Myslivets, S. A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Zyryanov, V. Ya.
Shabanov, V. F.] Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
[Lee, Wei] Chung Yuan Chistian Univ, Ctr Nanotechnol, Chungli 32023, Taiwan
[Lee, Wei] Chung Yuan Chistian Univ, Dept Phys, Chungli 32023, Taiwan
ИФ СО РАН
Krasnoyarsk Scientific Center, Kirensky Institute of Physics, Russian Academy of Science, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Krasnoyarsk 660041, Russian Federation
Siberian State Aerospace University, Krasnoyarsk 660014, Russian Federation
Department of Physics, Center for Nanotechnology, Chung Yuan Chistian University, Chung-Li, 32023, China

Доп.точки доступа:
Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Zyryanov, V. Y.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович; Lee, W.
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Atomic current across an optical lattice / A. V. Ponomarev [et al.] // Phys. Rev. Lett. - 2006. - Vol. 96, Is. 5. - Ст. 50404, DOI 10.1103/PhysRevLett.96.050404. - Cited References: 18 . - ISSN 0031-9007

РУБ Physics, Multidisciplinary

Кл.слова (ненормированные):
Crystal lattices -- Electric conductance -- Fermions -- Switches -- Atomic current -- Microscopic dynamics -- Optical lattices -- Atomic physics
Аннотация: We devise a microscopic model for the emergence of a collision-induced, fermionic atomic current across a tilted optical lattice. Tuning the-experimentally controllable-parameters of the microscopic dynamics allows us to switch from Ohmic to negative differential conductance.

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Держатели документа:
Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Tech Univ Munich, Dept Phys, D-85747 Garching, Germany
ИФ СО РАН
Max-Planck-Institut fur Physik Komplexer Systeme, Nothnitzer Stra?e 38, 01187 Dresden, Germany
Kirensky Institute of Physics, 660036 Krasnoyarsk, Russian Federation
Physik Department, Technische Universitat Munchen, James-Franck-Stra?e, 85747 Garching, Germany

Доп.точки доступа:
Ponomarev, A. V.; Madronero, J.; Kolovsky, A. R.; Коловский, Андрей Радиевич; Buchleitner, A.
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Shaping light in backward-wave nonlinear hyperbolic metamaterials / A. K. Popov [et al.] // Photonics. - 2018. - Vol. 5, Is. 2. - Ст. 8, DOI 10.3390/photonics5020008. - Cited References: 46. - Alexander K. Popov acknowledges support by the U. S. Army Research Office under grant number W911NF-14-1-0619. Vitaly V. Slabko acknowledges support by the Ministry of Education and Science of the Russian Federation (project # 3.6341.2017/6.7). . - ISSN 2304-6732

РУБ Optics
Рубрики:
NEGATIVE-INDEX METAMATERIALS
OPTICAL PARAMETRIC OSCILLATOR
Кл.слова (ненормированные):
optical metamaterials -- fundamental concepts in photonics -- light-matter -- interactions at the subwavelength and nanoscale -- fundamental -- understanding of linear and nonlinear optical processes in novel metamaterials underpinning photonic devices and components -- advancing the frontier of nanophotonics with the associated nanoscience and nanotechnology -- nanostructures that can serve as building blocks for nano-optical systems -- use of nanotechnology in photonics -- nonlinear nanophotonics -- plasmonics and excitonics -- subwavelength components and negative index materials -- slowing, store, and processing light pulses -- materials for optical sensing, for tunable optical delay lines, for optical buffers, for high extinction optical switches, for novel image processing hardware, and for highly-efficient wavelength converters
Аннотация: Backward electromagnetic waves are extraordinary waves with contra-directed phase velocity and energy flux. Unusual properties of the coherent nonlinear optical coupling of the phase-matched ordinary and backward electromagnetic waves with contra-directed energy fluxes are described that enable greatly-enhanced frequency and propagation direction conversion, parametrical amplification, as well as control of shape of the light pulses. Extraordinary transient processes that emerge in such metamaterials in pulsed regimes are described. The results of the numerical simulation of particular plasmonic metamaterials with hyperbolic dispersion are presented, which prove the possibility to match phases of such coupled guided ordinary and backward electromagnetic waves. Particular properties of the outlined processes in the proposed metamaterial are demonstrated through numerical simulations. Potential applications include ultra-miniature amplifiers, frequency changing reflectors, modulators, pulse shapers, and remotely actuated sensors.

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Держатели документа:
Purdue Univ, Birck Nanotechnol Ctr, W Lafayette, IN 47907 USA.
Russian Acad Sci, LV Kirensky Inst Phys, Dept Coherent & Nonlinear Opt, Fed Res Ctr,Siberian Branch,Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660041, Russia.
Univ Missouri, Off Chancellor, St Louis, MO 63121 USA.

Доп.точки доступа:
Popov, A. K.; Myslivets, S. A.; Мысливец, Сергей Александрович; Slabko, V. V.; Tkachenko, V. A.; George, T. F.; U. S. Army Research Office [W911NF-14-1-0619]; Ministry of Education and Science of the Russian Federation [3.6341.2017/6.7]
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Regulation of the phase transition temperature and hysteresis width by changing the composition of solid solution / K. N. Boldyrev, V. M. Burlakov, I. A. Gudim [et al.] // Phys. Rev. Mater. - 2021. - Vol. 5, Is. 9. - Ст. 094414, DOI 10.1103/PhysRevMaterials.5.094414. - Cited References: 52. - This work is supported by the Russian Science Foundation under Grant No. 19-12-00413 . - ISSN 2475-9953
Кл.слова (ненормированные):
Crystal impurities -- Electronic cooling -- Hysteresis -- Hysteresis loops -- Magnetic materials -- Magnetic storage -- Optical switches -- Rare earths -- Temperature -- Virtual storage -- F-f transitions -- Frequency shift -- Hysteresis widths -- Mixed crystals -- Optical spectrum -- Phase transition temperatures -- Rectangular hysteresis loop -- Structural phase transition -- Thermal hysteresis -- Transition hysteresis -- Solid solutions
Аннотация: A detailed study of the structural phase transition in Eu1–xLaxFe3(BO3)4 mixed crystals as a function of composition is reported. By analyzing a frequency shift of an electronic f-f transition in high-resolution optical spectra of Eu3+ ions, we detected a decrease in the phase transition temperature Ts from 87.05 to 12.2 K (upon cooling) and a simultaneous increase in thermal hysteresis ΔTs from 0.29 to 4.7 K with increasing x from x=0 to x=0.12. A rectangular hysteresis loop was observed. The experimental Ts(x) and ΔTs(x) dependences are described within the developed analytical model utilizing linear decrease in Ts with x and treating the increase in ΔTs in terms of the impurity-related decrease in the interaction between some local order parameters. We argue that R1−xR′xFe3(BO3)4 solid solutions, where R and R′ are different rare-earth elements, can be used to implement optical storage devices and switches operating at any chosen temperature between 0 and 450 K. It is found that the changes in the composition and, correspondingly, structural phase transition parameters do not affect the magnetic phase transformation. Eu0.88La0.12Fe3(BO3)4 demonstrates the structural phase transition at about 12 K, well below the Néel temperature TN=32K.

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Держатели документа:
Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow, 108840, Russian Federation
Linacre College, University of Oxford, St Cross Road, Oxford, OX1 3JA, United Kingdom
Kirensky Institute of Physics, Siberian Branch of RAS, Krasnoyarsk, 660036, Russian Federation
Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991, Russian Federation

Доп.точки доступа:
Boldyrev, K. N.; Burlakov, V. M.; Gudim, I. A.; Гудим, Ирина Анатольевна; Gavrilkin, S. Y.; Popova, M. N.
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Electrically controllable optical switch based on one-dimensional photonic crystal / V. A. Gunyakov [et al.] // Proceedings of CAOL 2008: 4th International Conference on Advanced Optoelectronics and Lasers. - 2008. - 4th International Conference on Advanced Optoelectronics and Lasers, CAOL 2008 (29 September 2008 through 4 October 2008, Alushta, Crimea, ) Conference code: 74830. - P186-188, DOI 10.1109/CAOL.2008.4671886 . - ISBN 9781424419746 (ISBN)
Кл.слова (ненормированные):
Detect mode -- Liquid crystal -- Photonic band gap -- Photonic crystal -- Crossed polarizers -- Detect mode -- Electric-field -- Electrooptical switches -- Light waves -- Spectral ranges -- Crystal atomic structure -- Crystal defects -- Energy gap -- Gallium alloys -- Light sources -- Liquid crystals -- Liquid lasers -- Nematic liquid crystals -- Optical devices -- Photonic crystals -- Photonic band gap
Аннотация: Electrooptical switch within narrow spectral range has been demonstrated. The switch consisting of one-dimensional photonic crystal with a nematic liquid crystal defect layer was placed between two crossed polarizers. Principle of operation is based on the interference of the ordinary and extraordinary light waves passed across the device due to the electric-field induced coincidence of their wavelengths. © 2008 IEEE.

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Держатели документа:
L. V. Kirensky Institute of Physics, Krasnoyarsk Scientific Center, SB RAS
Siberian Federal University, Krasnoyarsk 660041, Russian Federation

Доп.точки доступа:
Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Shabanov, V. F.; Шабанов, Василий Филиппович; International Conference on Advanced Optoelectronics and Lasers(4th ; 2008 ; Apr. 29 Sep. - 04 Oct. ; Alushta, Crimea)
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