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ANAHIT BADALYAN1, RUBEN HOVSEPYAN1, VAHRAM MEKHITARYAN1, PAYTSAR MANTASHYAN1,* , RAFAEL DRAMPYAN1
3D holographic refractive gratings were created by combined interferometric-mask method in photorefractive Fe-doped lithium niobate (LN:Fe) crystal revealing high photorefractive properties. The recording of the holographic gratings were performed by 532 nm cw laser beam illumination of the crystal through 2-fold rotational symmetry mask using counter-propagating beam geometry. The gratings formed have ~30 m period in radial and azimuthal directions and 266nm in axial direction. The gratings were tested by diffraction of red laser 633 nm Gaussian beam on the grating. The direct observation of the gratings was performed by phase microscope. Created refractive gratings are promising for many applications including guiding and trapping systems, high capacity information storage etc..
Holographic gratings, Diffraction, Photorefractive materials, Micro- and nano-structures.
ANAHIT BADALYAN, RUBEN HOVSEPYAN, VAHRAM MEKHITARYAN, PAYTSAR MANTASHYAN, RAFAEL DRAMPYAN, Formation of 3D gratings by interferometric-mask method in LiNbO3:Fe crystals, Optoelectronics and Advanced Materials - Rapid Communications, 6, 3-4, March-April 2012, pp.520-523 (2012).
Submitted at: June 10, 2011
Accepted at: April 11, 2012
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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