30 September 1994 Phase specklegram: a significant improvement of laser-speckle photography
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This paper deals with the enhancement of a laser speckle photography technique by means of a modification of the film development procedure. Using a holographic film, an amplitude characteristic of the film can be changed to a phase characteristic. This conversion is achieved during the film development procedure by a controlled bleaching of the exposed film. The experimental arrangement and the method to get a phase specklegram are described in detail. First experimental results are presented, the phase specklegram characteristics and the fields of application are discussed. Keywords: laser speckle photography, amplitude specklegram, phase specklegram
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yaozu Song, Yaozu Song, Rudi Kulenovic, Rudi Kulenovic, Manfred Groll, Manfred Groll, } "Phase specklegram: a significant improvement of laser-speckle photography", Proc. SPIE 2263, Current Developments in Optical Design and Optical Engineering IV, (30 September 1994); doi: 10.1117/12.188011; https://doi.org/10.1117/12.188011


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