Characterization of nonlinear optical crystal absorption

Christian Mühlig; Simon Bublitz

doi:10.1117/1.OE.57.12.121907

30 October 2018 Characterization of nonlinear optical crystal absorption

Christian Mühlig, Simon Bublitz

Author Affiliations +

Optical Engineering, Vol. 57, Issue 12, 121907 (October 2018). https://doi.org/10.1117/1.OE.57.12.121907

Abstract

A simplified absolute calibration for the photothermal laser-induced deflection technique is introduced and applied to characterize different nonlinear optical crystals at common diode pumped solid state laser wavelengths. In particular, intensity-dependent absorption measurements at 355 nm are performed to investigate the nonlinear absorption in lithium triborate crystals. From the results, it is verified that at least to a certain extent the nonlinear absorption is related to impurities or defects, i.e., to sequential three-photon absorption in addition to a potential intrinsic three-photon absorption process.

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Christian Mühlig and Simon Bublitz "Characterization of nonlinear optical crystal absorption," Optical Engineering 57(12), 121907 (30 October 2018). https://doi.org/10.1117/1.OE.57.12.121907

Received: 27 April 2018; Accepted: 9 October 2018; Published: 30 October 2018

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