Focusing light in scattering media by ultrasonically encoded wavefront shaping (SEWS)

Jian Wei Tay, Puxiang Lai, Yuta Suzuki, and Lihong V. Wang


We focused light into a scattering medium using a spatial light modulator, increasing the optical intensity at the target by 11x. The phase pattern was obtained using a genetic algorithm, with ultrasonically-encoded light as feedback.