Simple technique for the determination of the complex transmittance of spatial light modulator
Abstract
We describe a simple technique for the determination of the complex transmittance of a spatial light modulator. The technique uses the variation of the diffraction efficiency of Ronchi gratings imprinted on the SLM, as a function of the grating contrast. The measurement is made on the central peak of the diffraction structure with a monopixel detector only. The technique can also be used in quasi real time in order to adjust the SLM in the expected working regime (phase only modulation for example)
Domains
Optics [physics.optics]Origin | Files produced by the author(s) |
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