The SHEW technique as a simple method to characterize the non-linear properties of crystals: investigation of helium implantation effects in LiNbO3 and KTiOPO4
Source abstract
Abstract
Abstract The Second Harmonic wave generated with Evanescent Wave (SHEW) technique is first applied to measure the value of the non-linear coefficient, d 33 , of lithium niobate (LN). The result is in good agreement with the known value from the literature. We subsequently investigate the second-order optical properties of the near surface of He + -implanted LN and KTiOPO 4 (KTP) crystals. Our results show a rather strong degradation of the non-linearity (≈50%) in both crystals.
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Research context
OpenAlex topics: Photorefractive and Nonlinear Optics · Optical and Acousto-Optic Technologies · Photonic and Optical Devices
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References (13)
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