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We describe a student project in electronic speckle pattern interferometry. The project includes holographic recording of diffraction gratings in thick, self-processing photopolymer layers made from off-the-shelf chemicals. The gratings are employed in a simple electronic speckle pattern interferometer to measure in-plane rotation.
Jallapuram, J., Healy, C., Mihaylova, E., Toal, V.:In-Plane Sensitive Electronic Speckle Pattern Interferometer Using a Diffractive Holographic Optical Element. American Journal of Physics Teachers, Vol. 74, 4, p.341-342.