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Abstract We demonstrate a simple non-destructive technique to deduce the thickness and average index of a modified layer formed beneath a glass surface by thermal poling. It is based on… Click to show full abstract
Abstract We demonstrate a simple non-destructive technique to deduce the thickness and average index of a modified layer formed beneath a glass surface by thermal poling. It is based on using periodic oscillations in optical transmission of poled glasses, which are due to the reflection of light at the interface of the poled glass region differing in composition and, respectively, in refractive index. The approach is verified by spectral ellipsometry, chemical etching and secondary ion mass spectrometry of poled soda-lime glass slides.
Journal Title: Optik
Year Published: 2021
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