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All-dielectric polarization-preserving anisotropic mirror / N. V. Rudakova [et al.] // OSA Contin. - 2018. - Vol. 1, Is. 2. - P. 682-689, DOI 10.1364/OSAC.1.000682. - Cited References: 39. - Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund (17-42-240464). Ministry of Science and Technology, Taiwan (MOST) (106-2923-M-009-002-MY3). . - ISSN 2578-7519
Рубрики:
Nanophotonics, Metamaterials, and Photonic Crystals
Кл.слова (ненормированные):
Cholesteric liquid crystals -- Circular polarization -- Electric fields -- Optical devices -- Phase plates -- Refractive index
Аннотация: The structure consisting of alternating uniaxial dielectric layers is known to produce reflection of the same polarization as the incident field; e.g., the right-hand elliptically polarized light preserves this right-handedness and ellipticity of polarization at reflection. The parameters permitting the properly-polarized reflectance to exceed 99% in a wide frequency range were considered both analytically and numerically. The mirror with tuned top-layer thickness is shown to have several times less polarization losses than the uniform mirror. The hybrid mirror with metallic bottom layer has a considerably reduced thickness.

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Держатели документа:
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk 660041, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
Institute of Imaging and Biomedical Photonics, College of Photonics, National Chiao Tung University, Guiren Dist., Tainan 71150, Taiwan

Доп.точки доступа:
Rudakova, N. V.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Lee, W.
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Chiral optical Tamm state at the interface between multilayer polarization-preserving anisotropic mirror and cholesteric / N. V. Rudakova [et al.] // The 4th Asian Conference on Liquid Crystals (ACLC 2019) : abstracts. - 2019. - P. . - Библиогр.: 4

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Доп.точки доступа:
Rudakova, N. V.; Рудакова, Наталья Викторовна; Timofeev, I. V.; Тимофеев, Иван Владимирович; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Pyatnov, M. V.; Пятнов, Максим Владимирович; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Chen, K.-P.; Lee, W.; Asian Conference on Liquid Crystals(4 ; 2019 ; Jan. 17-18 ; Shenzhen, China)
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Chiral optical Tamm states at the interface between a cholesteric and an all-dielectric polarization-preserving anisotropic mirror / N. V. Rudakova [et al.] // Abstracts of 27th International Liquid Crystal Conference (ILCC 2018). - 2018. - Ст. 4-D-12. - Cited References: 3

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Доп.точки доступа:
Rudakova, N. V.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Bikbaev, R. G.; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Lee, W.; International Liquid Crystal Conference(27 ; 2018 ; July ; 22-27 ; Kyoto, Japan)
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Chiral optical Tamm states at the interface between a Dye-doped cholesteric liquid crystal and an anisotropic mirror / A. Yu. Avdeeva, S. Ya. Vetrov, R. G. Bikbaev [et al.] // Materials. - 2020. - Vol. 13, Is. 15. - Ст. 3255, DOI 10.3390/ma13153255. - Cited References: 44. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project No. 19-42-240004 and by Russian Foundation for Basic Research, project No. 19-52-52006 . - ISSN 1996-1944

РУБ Materials Science, Multidisciplinary
Рубрики:
PHASE
POLARIZATION
MODES
Кл.слова (ненормированные):
localization of light -- photonic crystals -- chirality -- dye-doped cholesteric liquid crystal -- optical Tamm states -- resonant frequency dispersion
Аннотация: The resonant splitting of optical Tamm state numerically is demonstrated. The Tamm state is localized at the interface between a resonant chiral medium and a polarization-preserving anisotropic mirror. The chiral medium is considered as a cholesteric liquid crystal doped with resonant dye molecules. The article shows that the splitting occurs when dye resonance frequency coincides with the frequency of the Tamm state. In this case the reflectance, transmittance, and absorptance spectra show two distinct Tamm modes. For both modes, the field localization is at the interface between the media. The external field control of configurable optical and structural parameters paves the way for use in tunable chiral microlaser.

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Публикация в сборнике Soft photonic crystals and metamaterials [Текст] / ed., pref.: I. V. Timofeev, W. Lee, 2022. - VII с. ; 127 с. (Введено оглавление)

Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Avdeeva, A. Yu.; Авдеева, Анастасия Юрьевна; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Pyatnov, M. V.; Пятнов, Максим Владимирович; Rudakova, N. V.; Рудакова, Наталья Викторовна; Timofeev, I. V.; Тимофеев, Иван Владимирович; Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund [19-42-240004]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-52-52006]
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Chiral optical Tamm states at the interface between an all-dielectric polarization-preserving anisotropic mirror and a cholesteric liquid crystal / N. V. Rudakova [et al.] // Crystals. - 2019. - Vol. 9, Is. 10. - Ст. 502, DOI 10.3390/cryst9100502. - Cited References: 48. - Russian Foundation for Basic Research (RFBR), Russia, grant No. 19-52-52006; Ministry of Science and Technology, Taiwan (MOST), grant No. 106-2923-M-009-002-MY3; M.V.P. thanks RFBR and KRSTSF for the research Project No. 18-42-243025. . - ISSN 2073-4352
Кл.слова (ненормированные):
Optical Tamm state -- Cholesteric liquid crystal -- Polarization-preserving anisotropic mirror
Аннотация: As a new localized state of light, the chiral optical Tamm state exists at the interface between a polarization-retaining anisotropic mirror and a substance with optical activity. Considering a hybrid structure comprising a metal-free polarization-preserving mirror and a cholesteric liquid crystal, we highlight the high Q factor arising from the all-dielectric framework. The intensity of localized light decreases exponentially with increasing distance from the interface. The penetration of the field into the cholesteric liquid crystal is essentially prohibited for wavelengths lying in the photonic bandgap and close to the cholesteric pitch length. The dielectric mirror has its own photonic bandgap. The energy transfer along the interface can be effectively switched off by setting the tangential wave vector to zero. The spectral behavior of the chiral optical Tamm state is observed both as reflection and transmission resonance. This Fano resonance is analogous to the Kopp-Genack effect. Our analytics are well in line with precise calculations, which may pave a new route for the future development of intelligent design for laser and sensing applications.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Institute of Imaging and Biomedical Photonics, College of Photonics, National Chiao Tung University, Tainan, 71150, Taiwan

Доп.точки доступа:
Rudakova, N. V.; Рудакова, Наталья Викторовна; Timofeev, I. V.; Тимофеев, Иван Владимирович; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Pyatnov, M. V.; Пятнов, Максим Владимирович; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Lee, W.
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Coupled chiral optical Tamm states in cholesteric liquid crystals / M. V. Pyatnov [et al.] // Photonics. - 2018. - Vol. 5, Is. 4. - Ст. 30, DOI 10.3390/photonics5040030. - Cited References: 38. - This research was funded by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund, to the research Project Nos. 17-42-240464 and 18-42-243025. . - ISSN 2304-6732
Кл.слова (ненормированные):
Cholesteric liquid crystal -- Optical Tamm states -- Localization -- Transmission spectrum -- Optical devices
Аннотация: The modes formed by two coupled chiral optical Tamm states localized at the interfaces between a photonic cholesteric liquid crystal conjugated with polarization-preserving anisotropic mirrors have been analytically and numerically investigated. These modes are only excited at the diffracting polarization of incident light. As the cholesteric layer thickness decreases, the spectral splitting of the localized state frequency is predicted. The splitting value depends on the crystal layer thickness. At the nondiffracting circular polarization, the localized modes are not excited, and the system becomes similar to the Fabry-Perot cavity containing an anisotropic helical structure.

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Держатели документа:
Siberian Federal University, Institute of Engineering Physics and Radio Electronics, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Federal Research Center, 'Krasnoyarsk Scientific Center, RussianAcademy of Sciences, Siberian Branch', Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Pyatnov, M. V.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Rudakova, N. V.
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High-Q nodes-free mode for lasing / N. V. Rudakova [et al.] // Progress in Electromagnetics Research Symposium : Abstracts. - 2018. - P. 2013. - Cited References: 3
Аннотация: Discrete-chiral medium [1] is a set of slab-sided layers of anisotropic material with optical axis constantly rotating layer by layer. Right-angled rotation produces an alternation of vertically and horizontally oriented layers (Fig. 1(a), inset). The structure transforms from chiral to non-chiral (ambichiral) one. On the one hand, the discrete-ambichiral medium possesses a polarisation-independent stopband, similar to multilayer mirror made of isotropic materials. On the other hand, similar to continuous-chiral medium, like cholesteric liquid crystal or chiral sculptured thin ﬁlm, the reﬂected light has the same sign of circular polarization as the incident light. On the basis of such chiral mirrors the ideas of nodes-free laser [2] and surface light localization [3] were proposed. In this study a new high-quality nodes-free mode in all-dielectric structure is examined for eﬃcient lasing. The reason for removed nodes and antinodes (Fig. 1(a)) is the suppressed interference for orthogonally polarized oppositely running waves [2]. The nodes-free standing wave in the laser active layer is advantageous in spacially homogeneous pumping and consequent growth of eﬃcient and stability. Another opportunity is that the in-plane rotation of one mirror by ϕ changes the Pancharatnam Berry phase by 2ϕ and smoothly shifts the mode frequency (Fig. 1(b)). Clockwise rotation shifts the right circularly polarized eigenmodes to shorter wavelengths and left circularly polarized ones to longer wavelengths.

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Доп.точки доступа:
Rudakova, N. V.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Lee, W.; Progress in Electromagnetics Research Symposium(40 ; 2018 ; Aug.; 1-4 ; Toyama, Japan)
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Metal-dielectric polarization-preserving anisotropic mirror for chiral optical Tamm state / N. V. Rudakova, R. G. Bikbaev, P. S. Pankin [et al.] // Nanomaterials. - 2022. - Vol. 12, Is. 2. - Ст. 234, DOI 10.3390/nano12020234. - Cited References: 46. - The reported study was funded by RFBR and MOST according to the research project No. 19-52-52006. This work was also supported by the Higher Education Sprout Project of the National Yang Ming Chiao Tung University and Ministry of Education and the Ministry of Science and Technology (MOST) No. 108-2923-E-009-003-MY3 . - ISSN 2079-4991

РУБ Chemistry, Multidisciplinary + Nanoscience & Nanotechnology + Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
PLASMON
   MODES
   PHASE
   ABSORPTION
   RESONANCE
Кл.слова (ненормированные):
chiral optical Tamm state -- polarization-preserving anisotropic mirror -- Q-factor -- coupled mode theory
Аннотация: This numerical study demonstrates the possibility of exciting a chiral optical Tamm state localized at the interface between a cholesteric liquid crystal and a polarization-preserving anisotropic mirror conjugated to a metasurface. The difference of the proposed structure from a fully dielectric one is that the metasurface makes it possible to decrease the number of layers of a polarization-preserving anisotropic mirror by a factor of more than two at the retained Q-factor of the localized state. It is shown that the proposed structure can be used in a vertically emitting laser.

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Держатели документа:
RAS, Fed Res Ctr KSC, Kirensky Inst Phys, SB, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Natl Yang Ming Chiao Tung Univ, Inst Imaging & Biomed Photon, Coll Photon, 301 Sec 2,Gaofa 3rd Rd, Tainan 711010, Taiwan.

Доп.точки доступа:
Rudakova, N. V.; Рудакова, Наталья Викторовна; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Pankin, P. S.; Панкин, Павел Сергеевич; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Chen, Kuo-Ping; Lee, Wei; RFBRRussian Foundation for Basic Research (RFBR); MOST [19-52-52006]; Higher Education Sprout Project of the National Yang Ming Chiao Tung University; Ministry of Science and Technology (MOST)Ministry of Science and Technology, China [108-2923-E-009-003-MY3]
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Polarization-preserving anisotropic mirror on the basis of metal–dielectric nanocomposite / N. V. Rudakova [et al.] // Bull. Russ. Acad. Sci. Phys. - 2017. - Vol. 81, Is. 1. - P. 5-9, DOI 10.3103/S1062873817010257. - Cited References: 11. - The reported study was funded by the Ministry of Education and Science of the Russian Federation, project no. 3.1211.2017/PCH; SB RAS no. II.2P (0358-2015-0010); Scholarship of the President of the Russian Federation no. SP-227.2016.5; RFBR and Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project no. 16-42-243065. . - ISSN 1062-8738
Кл.слова (ненормированные):
Anisotropy -- Metal nanoparticles -- Mirrors -- Nanocomposites -- Nanoparticles -- Polarization -- Silver -- A-plane -- Reflected light -- Reflection spectra -- Transparent matrix -- Metallic matrix composites
Аннотация: The model of a polarization-preserving anisotropic mirror is proposed. The mirror is a plane boundary of a metal–dielectric nanocomposite that consists of silver spheroidal nanoparticles dispersed in a transparent matrix. The dependence of reflection spectra on the shape of the nanoparticles is studied. It is shown that in one region of the spectrum, the mirror preserves the sign of polarization in the reflected light. © 2017, Allerton Press, Inc.

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Публикация на русском языке Coхраняющее поляризацию анизотропное зеркало на основе металл-диэлектрического нанокомпозита [Текст] / Н. В. Рудакова [и др.] // Изв. РАН. Сер. физич. - 2017. - Т. 81 № 1. - С. 10-14

Держатели документа:
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Laboratory of Nonlinear Optics and Spectroscopy, Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Rudakova, N. V.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Pankin, P. S.; Vetrov, S. Ya.; Ветров, Степан Яковлевич
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10.

Rudakova, N. V.
Optical properties of nanostructured 2D metal-dielectric photonic crystals with a lattice defect / N. V. Rudakova, I. V. Timofeev, S. Y. Vetrov // Opt. Spectrosc. - 2013. - Vol. 115, Is. 5. - P. 660-665, DOI 10.1134/S0030400X13110209. - Cited References: 23. - This work was supported by the grants g/k 14.V37.21.0730 of the federal targeted program "Scientific and Pedagogical Personnel of Innovative Russia"; no. 24.29 of Presidium of the Siberian Branch of the Russian Academy of Sciences; the Ministry of Education and Science of the Russian Federation, Agreement 14.V37.21.0730; OFN RAS no. III.9.5; Presidium of RAS nos. 24.29 and 24.31; and Siberian Branch of the Russian Academy of Sciences, nos. 43 and 101. . - ISSN 0030-400X

РУБ Optics + Spectroscopy

Аннотация: Optical properties of 2D nanocomposite-based photonic crystals with a lattice defect are studied. The nanocomposite comprises metallic nanospheres dispersed in a transparent matrix and is characterized by an effective resonant permittivity. Transmission spectrum for s-polarized waves at oblique incidence is calculated. Spectral manifestation of the splitting of the defect mode when its frequency coincides with the resonant frequency of the nanocomposite is studied. The essential dependence of the splitting on the angle of incidence and concentration of metallic nanospheres in the nanocomposite matrix is established. Specific features of spatial distribution of the electric field intensity in defect modes of crystals are analyzed.

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Публикация на русском языке Оптические свойства наноструктурированных металл-диэлектрических двумерных фотонных кристаллов с дефектом решетки. - [S. l. : s. n.]

Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660074, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Timofeev, I. V.; Тимофеев, Иван Владимирович; Vetrov, S. Y.; federal targeted program "Scientific and Pedagogical Personnel of Innovative Russia" [g/k 14.V37.21.0730]; Presidium of the Siberian Branch of the Russian Academy of Sciences [24.29]; Ministry of Education and Science of the Russian Federation [14.V37.21.0730]; OFN RAS [III.9.5]; Presidium of RAS [24.29, 24.31]; Siberian Branch of the Russian Academy of Sciences [43, 101]
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