Z-scan analysis for photorefractive LiNbO3:Fe crystals of arbitrary thickness

Title
Z-scan analysis for photorefractive LiNbO3:Fe crystals of arbitrary thickness
Author(s)
김종수이상조김근형곽종훈
Keywords
OPTICAL NONLINEARITIES; SINGLE-BEAM; SAMPLE; MEDIA
Issue Date
201508
Publisher
KOREAN PHYSICAL SOC
Citation
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.67, no.3, pp.413 - 417
Abstract
We present an analytical theory for the large-phase-shift, thick Z-scan transmittance, which could be applied to a wide range of medium thickness from the thin sample limit to a thick medium and to small and large nonlinear phase shifts. The theoretical results were experimentally verified for in photorefractive LiNbO3:Fe crystals by using two kinds of closed-aperture Z-scan measurements with a Ti-sapphire laser source (lambda = 810 nm): (1) sample-thickness-dependent Z-scans with thin and thick samples and (2) normalized-thickness-factor-dependent Z-scans with different external lenses having different focal lengths in the same thick LiNbO3:Fe crystal.
URI
http://hdl.handle.net/YU.REPOSITORY/31356http://dx.doi.org/10.3938/jkps.67.413
ISSN
0374-4884
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이과대학 > 물리학과 > Articles
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