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3D focusing through highly scattering media using PSF modulation

Authors :
Xinyao Hu
Panpan Yu
Rui-Shan Chen
Lei Gong
Ziqiang Wang
Qian Zhao
Yinmei Li
Source :
Applied Physics Letters. 113:191104
Publication Year :
2018
Publisher :
AIP Publishing, 2018.

Abstract

In this letter, we present an approach to achieve three-dimensional (3D) focusing through highly scattering media. The method combines 3D computer-generated holography (CGH) with point-spread-function (PSF) based wavefront shaping. With a single transmission matrix measurement, CGH-aided PSF engineering enables us to control light volumetrically under multiple scattering. As a proof of concept, generating user-specified 2D intensity patterns and 3D focusing through scattering media were demonstrated. Further, axial scanning of the focus was realized digitally by using a digital micromirror device. Experimentally, our method achieves an axial scanning range ∼20 times larger than that obtained by the memory effect method. Our work is expected to benefit long-range optical trapping and volumetric imaging through highly scattering media.

Details

ISSN :
10773118 and 00036951
Volume :
113
Database :
OpenAIRE
Journal :
Applied Physics Letters
Accession number :
edsair.doi...........0f61bc8f1ebee266d2b99b1f35d44c4b
Full Text :
https://doi.org/10.1063/1.5060710