Second-harmonic parametric scattering in ferroelectric crystals with disordered nonlinear domain structures
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Authors
Trull, Jose
Cojocaru, Crina
Fischer, Robert
Saltiel, Solomon
Staliunas, Kestutis
Herrero, Ramon
Vilaseca, Ramon
Neshev, Dragomir
Krolikowski, Wieslaw
Kivshar, Yuri
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Optical Society of America
Abstract
We study the second-harmonic (SH) parametric processes
in unpoled crystals of Strontium Barium Niobate (SBN) with disordered
structures of ferroelectric domains. Such crystals allow for the simultaneous
phase matching of several second-order nonlinear processes. We
analyze the polarization properties of these parametric processes using
two types of generation schemes: quasi-collinear SH generation and
transverse SH generation. From our experimental data we determine the
ratio of d32 and d33 components of the second order susceptibility tensor
and also the statistical properties of the random structure of the SBN crystal.
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Optics Express 15.24 (2007): 15868-15877
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Optics Express
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