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Updated: May 27, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Temperature-dependent index of refraction of monoclinic Ga2O3 single crystal
Indranil Bhaumik1, R Bhatt, S Ganesamoorthy
1Laser Materials Development and Devices Division, Raja Ramanna Centre for Advanced Technology, Indore-452 013, India. neel@rrcat.gov.in
Abstract:
We present temperature-dependent refractive index along crystallographic b[010] and a direction perpendicular to (100)-plane for monoclinic phase (β) Ga(2)O(3) single crystal grown by the optical floating zone technique. The experimental results are consistent with the theoretical result of Litimein et al.1. Also, the Sellmeier equation for wavelengths in the range of 0.4-1.55 μm is formulated at different temperatures in the range of 30-175 °C. The thermal coefficient of refractive index in the above specified range is ~10(-5)/°C.
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