Sagnac-interferometry-based digital optical phase conjugation (DOPC) system for turbidity suppression

Timothy R. Hillman, YongKeun Park, Zahid Yaqoob, Wonshik Choi, Dan Fu, Toyohiko Yamauchi, Ramachandra R. Dasari, Michael S. Feld

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Multiple scattering is a significant obstacle in the optical imaging of biological samples. However, it is possible to reverse its effects through optical phase conjugation (OPC) of the scattered field. We perform digital OPC (DOPC) utilizing a spatial light modulator (SLM) and a Sagnac interferometer geometry. This design permits a simple and robust DOPC implementation, which we demonstrate experimentally. We exploit the beam-shaping flexibility of the SLM to demonstrate the possibility to enhance either the optical power transmission or the light focusing ability of the DOPC process.

Original languageEnglish
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7904
DOIs
Publication statusPublished - 2011 Apr 29
EventThree-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XVIII - San Francisco, CA, United States
Duration: 2011 Jan 242011 Jan 27

Other

OtherThree-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XVIII
CountryUnited States
CitySan Francisco, CA
Period11/1/2411/1/27

    Fingerprint

Keywords

  • Digital holography
  • Digital phase conjugation
  • Multiple scattering
  • Optical phase conjugation
  • Optical wave shaping
  • Transmission matrix
  • Turbidity suppression

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

Cite this

Hillman, T. R., Park, Y., Yaqoob, Z., Choi, W., Fu, D., Yamauchi, T., Dasari, R. R., & Feld, M. S. (2011). Sagnac-interferometry-based digital optical phase conjugation (DOPC) system for turbidity suppression. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE (Vol. 7904). [790417] https://doi.org/10.1117/12.875918