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1.3 PHYSICAL SCIENCES, Optics
A diffractive optical element is described that can be used to implement a self-aligning electronic speckle apttern interferometer and holographic interferometer requiring only a laser source and a camera in the optical set-up.
Guntaka, S., Toal, V. & Martin, S. (2002) Holographically recorded photopolymer diffractive optical element for holographic and electronic speckle-pattern interferometry. Applied Optics, Vol. 41, no. 35, pp. 7475-7479. doi:10.1364/AO.41.007475