Digital optical phase conjugation for delivering two-dimensional images through turbid media

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

Research output: Contribution to journalArticle

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Abstract

Optical transmission through complex media such as biological tissue is fundamentally limited by multiple light scattering. Precise control of the optical wavefield potentially holds the key to advancing a broad range of light-based techniques and applications for imaging or optical delivery. We present a simple and robust digital optical phase conjugation (DOPC) implementation for suppressing multiple light scattering. Utilizing wavefront shaping via a spatial light modulator (SLM), we demonstrate its turbidity-suppression capability by reconstructing the image of a complex two-dimensional wide-field target through a highly scattering medium. Employing an interferometer with a Sagnac-like ring design, we successfully overcome the challenging alignment and wavefront-matching constraints in DOPC, reflecting the requirement that the forward- and reverse-propagation paths through the turbid medium be identical. By measuring the output response to digital distortion of the SLM write pattern, we validate the sub-wavelength sensitivity of the system.

Original languageEnglish
Article number1909
JournalScientific Reports
Volume3
DOIs
Publication statusPublished - 2013 Jun 12

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Light
Optical Imaging

ASJC Scopus subject areas

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Hillman, T. R., Yamauchi, T., Choi, W., Dasari, R. R., Feld, M. S., Park, Y., & Yaqoob, Z. (2013). Digital optical phase conjugation for delivering two-dimensional images through turbid media. Scientific Reports, 3, [1909]. https://doi.org/10.1038/srep01909

Digital optical phase conjugation for delivering two-dimensional images through turbid media. / Hillman, Timothy R.; Yamauchi, Toyohiko; Choi, Wonshik; Dasari, Ramachandra R.; Feld, Michael S.; Park, Yongkeun; Yaqoob, Zahid.

In: Scientific Reports, Vol. 3, 1909, 12.06.2013.

Research output: Contribution to journalArticle

Hillman, Timothy R. ; Yamauchi, Toyohiko ; Choi, Wonshik ; Dasari, Ramachandra R. ; Feld, Michael S. ; Park, Yongkeun ; Yaqoob, Zahid. / Digital optical phase conjugation for delivering two-dimensional images through turbid media. In: Scientific Reports. 2013 ; Vol. 3.
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