Experiments with photorefractive crystals for holographic interferometry

Robert Magnusson; Xuqun Wang; Ali Hafiz; Truman D. Black; A. Haji-Sheikh

doi:10.1117/12.140432

2 March 1993 Experiments with photorefractive crystals for holographic interferometry

Robert Magnusson, Xuqun Wang, Ali Hafiz, Truman D. Black, A. Haji-Sheikh

Proceedings Volume 1732, Holographics International '92; (1993) https://doi.org/10.1117/12.140432
Event: Holographics International '92, 1992, London, United Kingdom

Abstract

Photorefractive crystals such as iron-doped lithium niobate can be useful recording materials in holographic interferometry. These crystals are self-developing, erasable and reusable, and sensitive to the recording laser light only. As such they are extremely convenient for routine interferometry applications. In this paper, experiments in interferometry using iron-doped lithium niobate crystals for recording the holograms are discussed. The results presented include double-exposure holographic interferometry with cw and pulsed lasers, holographic subtraction interferometry, and real-time interferometry with photorefractive reference holograms. Example applications such as visualization of aerodynamic flow fields, heat transfer patterns, and acoustic fields are presented.

Citation Download Citation

Robert Magnusson, Xuqun Wang, Ali Hafiz, Truman D. Black, and A. Haji-Sheikh "Experiments with photorefractive crystals for holographic interferometry", Proc. SPIE 1732, Holographics International '92, (2 March 1993); https://doi.org/10.1117/12.140432

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