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1.3 PHYSICAL SCIENCES, Optics, Polymer science
A method has been developed for retrieving the complete angular selectivity profile of transmission holographic gratings in one step. The method is applied to study in real time the shrinkage and changes in the effective optical thickness of a slanted holographic grating recorded in an acrylamide-based photopolymer. It can form the basis of a holographic sensor of analytes that cause a thickness change in the holographic medium. It can also be useful for the study and optimization of holographic recording materials and for quality control during production of holographic optical elements.
Pandey, N. et al. (2008) Technique for characterization of dimensional changes in slanted holographic gratings by monitoring the angular selectivity profile. Optics Letters, Vol. 33, No. 17, September. doi:10.1364/OL.33.001981