Absolute speckle interferometry with an angular-spectrum-tunable source

Zhihui Duan; Dong Wei; Akinori Yamada; Yoko Miyamoto; Mitsuo Takeda

doi:10.1117/12.695359

15 September 2006 Absolute speckle interferometry with an angular-spectrum-tunable source

Zhihui Duan, Dong Wei, Akinori Yamada, Yoko Miyamoto, Mitsuo Takeda

Proceedings Volume 6341, Speckle06: Speckles, From Grains to Flowers; 634118 (2006) https://doi.org/10.1117/12.695359
Event: Speckle06: Speckles, From Grains to Flowers, 2006, Nimes, France

Abstract

Based on the fringe formation in the k-vector space, we proposed an angular spectrum scanning technique for absolute interferometry. Instead of sweeping the optical frequency over a wide range of spectrum, we tune the angular spectrum by changing the incident angle of a monochromatic plane wave with a spatial light modulator (SLM). In the experiment, we built an equivalent spatially incoherent "ring source" to realize the angular spectrum scanning, and applied an algorithm to compensate the offset fluctuation of the fringe intensity.

Citation Download Citation

Zhihui Duan, Dong Wei, Akinori Yamada, Yoko Miyamoto, and Mitsuo Takeda "Absolute speckle interferometry with an angular-spectrum-tunable source", Proc. SPIE 6341, Speckle06: Speckles, From Grains to Flowers, 634118 (15 September 2006); https://doi.org/10.1117/12.695359

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