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Thermo-optic and thermal expansion coefficients of RTP and KTP crystals over 300-350 K

2016/07/14 by Arlee V. Smith, J. Joshua Smith, Smith, Arlee V. +5
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Nonlinear Optical Materials Research #Optical and Acousto-Optic Technologies #Optics (physics.optics) #Solid-state spectroscopy and crystallography #physics.optics

paper · pdf · doi:10.48550/arxiv.1607.03964

12 pages, 5 figures, 9 tables

arxiv created 2016/07/14 · openalex publication_date 2016/07/14 · arxiv updated 2016/07/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We report new measurements of the thermal expansion and thermo-optic coefficients of RbTiOPO4 (RTP) and KTiOPO4 (KTP) crystals over the temperature range 300-350 K. For RTP/KTP our coefficients of linear thermal expansion at 305 K are: αx=9.44/7.88× 10-6/K, αy=12.49/9.48× 10-6/K, αz=-4.16/0.02× 10-6/K. Our normalized thermo-optic coefficients β=(1/n)dn/dT at 632.8 nm and 305 K are: βx=5.39/3.78× 10-6/K, βy=7.11/5.24× 10-6/K, βz=12.35/9.34× 10-6/K.

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