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3D focusing through highly scattering media using PSF modulation
- 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.
- Subjects :
- Physics
Wavefront
Physics and Astronomy (miscellaneous)
Scattering
business.industry
Holography
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Computer-generated holography
Digital micromirror device
law.invention
010309 optics
Optics
Modulation
law
Optical transfer function
0103 physical sciences
0210 nano-technology
Focus (optics)
business
Subjects
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