Light-induced lens analysis in photorefractive crystals employing phase-shifting real-time holographic interferometry
✍ Scribed by Marcos R.R. Gesualdi; Mikiya Muramatsu; Eduardo A. Barbosa
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 558 KB
- Volume
- 281
- Category
- Article
- ISSN
- 0030-4018
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✦ Synopsis
The purpose of this work is to study the potentialities of phase-shifting real-time holographic interferometry for the analysis of light-induced lens in photorefractive and nonlinear optical materials. We show that this technique can be used for quantitative evaluation of the phase distribution of a wavefront changed by a light-induced lens and, consequently, the refractive index changes in these materials. The basic principle of this technique combines real-time holographic interferometry with phase-shifting technique for interferogram analysis. This method is demonstrated with in situ visualization, monitoring and analysis in real-time and uses a Bi 12 SiO 20 crystal as the holographic medium and a Bi 12 TiO 20 as the test sample.