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DOE OSTI · 1882986

High-resolution mapping of phase-matching conditions in second-order nonlinear crystals

Dorrer, C. (ORCID:0000000253745394)·Begishev, I. A.·Bahk, S. -W. (ORCID:0000000234325888)·Bromage, J. (ORCID:000000030720093X)
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Abstract

We demonstrate the spatial mapping of phase-matching conditions in nonlinear crystals using detuned second-harmonic generation. A beam-stabilization system cancels out the angular wobbling of the translation stages that scan the crystal under test in front of the static probe beam at the fundamental frequency. A submillimeter resolution over the full scanned aperture, 50 × 50 mm 2 , is demonstrated. The mapping of several partially deuterated potassium dihydrogen phosphate (DKDP) crystals reveals the spatially nonuniform phase-matching conditions due to internal variations in crystal properties and high-frequency surface variations.

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36 MATERIALS SCIENCE

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BibTeXRIS

Dorrer, C. (ORCID:0000000253745394), Begishev, I. A., Bahk, S. -W. (ORCID:0000000234325888), Bromage, J. (ORCID:000000030720093X). 2022-08-23. High-resolution mapping of phase-matching conditions in second-order nonlinear crystals. https://doi.org/10.1364/ome.468127

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36 MATERIALS SCIENCE↗