Flexible diffractive gratings: theoretical investigation of the dependency of diffraction efficiency on mechanical deformation.


The mechanical deformations of variable elastomeric diffractive optical elements are calculated by finite element methods. Starting from optimized blazed gratings, the derived profile variations serve as an input for rigorous-coupled-wave analysis to calculate the diffraction efficiency of a spectral band from 200 to 1200 nm. Applied planar strain of up to… (More)
DOI: 10.1364/AO.53.001381


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