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Nanosystems: Physics, Chemistry, Mathematics, 2014, Volume 5, Issue 2, Pages 210–216
(Mi nano854)
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Optical induction of 3D refractive lattices in doubly doped LiNbO$_{3}$ photorefractive crystal
A. Badalyana, P. Mantashyana, V. Mekhitaryana, V. Nersesyana, R. Drampyanb a Institute for Physical Research, National Academy of Sciences of Armenia, 0203, Ashtarak-2, Armenia
b Armenian – Russian (Slavonic) University, H. Emin str. 123, 0051, Yerevan, Armenia
Abstract:
The optical induction of 3D rotational symmetry refractive lattices in doubly doped photorefractive and photochromic LiNbO$_{3}$:Fe:Cu crystal by combined interferometric-mask method was performed. The method is based on the spatial light modulation by amplitude mask in the transverse plane and the use of counter-propagating beam geometry building up a Gaussian standing wave, which defines the light intensity modulation in the axial direction with half-wavelength periodicity. Masks with rotationally symmetrical structures are used in the experiment. The created intensity pattern was imparted into the LiNbO$_{3}$:Fe:Cu crystal thus creating refractive lattice with the periods of 20 – 60 $\mu$m in the radial and azimuthal directions and 266 nm in the axial direction. The refractive and dispersive properties of the recorded lattices were studied.
Keywords:
photonic lattice, photorefractive and photochromic effects, lithium niobate, micro- and nano-structures.
Citation:
A. Badalyan, P. Mantashyan, V. Mekhitaryan, V. Nersesyan, R. Drampyan, “Optical induction of 3D refractive lattices in doubly doped LiNbO$_{3}$ photorefractive crystal”, Nanosystems: Physics, Chemistry, Mathematics, 5:2 (2014), 210–216
Linking options:
https://www.mathnet.ru/eng/nano854 https://www.mathnet.ru/eng/nano/v5/i2/p210
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Abstract page: | 61 | Full-text PDF : | 25 | References: | 1 |
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