Fluidic actuation of a binary optical element

Abstract

Characterization of a fluid-controlled elastomeric grating is presented. Using a HeNe laser beam (λ = 632.8nm), changes in diffraction angle and beam profile are measured and observed as gradual volumetric increments of water are introduced into a fluidic chamber. A diffraction angle range of 17 degrees was achieved with the addition of 1.0 mL of water.