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Absorption distribution of an optical beam focused into a turbid medium

Wang, Lihong V. and Liang, Gan (1999) Absorption distribution of an optical beam focused into a turbid medium. Applied Optics, 38 (22). pp. 4951-4958. ISSN 0003-6935. doi:10.1364/AO.38.004951.

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The focusing of light into a turbid medium was studied with Monte Carlo simulations. Focusing was found to have a significant effect on the absorption distribution in turbid media when the depth of the focal point (the distance between the focal point and the surface of the turbid media) was less than or comparable with the transport mean free path. Focusing could significantly increase the peak absorption and narrow the absorption distribution. As the depth of the focal point increased, the peak absorption decreased, and the depth of peak absorption increased initially but quickly reached a plateau that was less than the transport mean free path. A refractive-index-mismatched boundary between the ambient medium and the turbid medium deteriorated the focusing effect, increased the absorption near the boundary, lowered the peak absorption, and broadened the absorption distribution.

Item Type:Article
Related URLs:
URLURL TypeDescription
Wang, Lihong V.0000-0001-9783-4383
Additional Information:© 1999 Optical Society of America. Received 25 February 1999; revised manuscript received 28 April 1999. This project was sponsored in part by the National Institutes of Health grants R29 CA68562 and R01 CA71980 and the National Science Foundation grant BES-9734491.
Funding AgencyGrant Number
NIHR29 CA68562
NIHR01 CA71980
Issue or Number:22
Classification Code:OCIS codes: 290.7050, 170.7050, 170.3660
Record Number:CaltechAUTHORS:20170203-152838438
Persistent URL:
Official Citation:Lihong V. Wang and Gan Liang, "Absorption distribution of an optical beam focused into a turbid medium," Appl. Opt. 38, 4951-4958 (1999)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:74048
Deposited By: Tony Diaz
Deposited On:03 Feb 2017 23:47
Last Modified:11 Nov 2021 05:24

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