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A new, to our knowledge, type of optical device capable of beam redirection and frequency filtering is described. It is based on a transparent elastomeric binary diffraction grating. When light is passed through the device the intensities of the diffraction orders can be modulated by compression of the elastomer in the direction perpendicular to the plane of the grating. Selective filtering of the component frequencies of two-component light ͑ ϭ 543.5 nm and ϭ 632.8 nm͒ has been demonstrated.doi:10.1364/ao.38.002997 pmid:18319882 fatcat:wgfw7riimfdkdbw5fzwtie7cdi