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Simultaneous acquisition of pi/2 phase-stepped interferograms with a photorefractive Bi(12)GeO(20) crystal:
Optics Letters
|October 29, 2009
Abstract:
We present a novel method for real-time analysis of vibrations in double-pulse laser holography. Two pi/2 phase-stepped interferograms are obtained simultaneously. An experimental demonstration gives a phase measurement with an accuracy of 4 degrees .

