Focusing through dynamic disordered media using a MEMS spatial light modulator
نویسندگان
چکیده
Experiments demonstrating controlled optical propagation through a dynamic, highly scattering medium are described. The phase of a coherent beam is controlled both spatially and temporally using a reflective, 1020-segment MEMS spatial light modulator. OCIS codes: (290.4210) Multiple scattering; (010.1080) Active or adaptive optics; (110.0113) Imaging through turbid media; 230.6120 Spatial light modulators; 230.3990 Micro-optical devices.
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Focusing through dynamic scattering media.
We demonstrate steady-state focusing of coherent light through dynamic scattering media. The phase of an incident beam is controlled both spatially and temporally using a reflective, 1020-segment MEMS spatial light modulator, using a coordinate descent optimization technique. We achieve focal intensity enhancement of between 5 and 400 for dynamic media with speckle decorrelation time constants ...
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