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Measurement of angular distributions by use of low-coherence interferometry for light-scattering spectroscopy

Wax, Adam and Yang, Changhuei and Dasari, Ramachandra R. and Feld, Michael S. (2001) Measurement of angular distributions by use of low-coherence interferometry for light-scattering spectroscopy. Optics Letters, 26 (6). pp. 322-324. ISSN 0146-9592. https://resolver.caltech.edu/CaltechAUTHORS:WAXol01

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Abstract

We present a novel interferometer for measuring angular distributions of backscattered light. The new system exploits a low-coherence source in a modified Michelson interferometer to provide depth resolution, as in optical coherence tomography, but includes an imaging system that permits the angle of the reference field to be varied in the detector plane by simple translation of an optical element. We employ this system to examine the angular distribution of light scattered by polystyrene microspheres. The measured data indicate that size information can be recovered from angular-scattering distributions and that the coherence length of the source influences the applicability of Mie theory.


Item Type:Article
Additional Information:© Copyright 2001 Optical Society of America Received September 11, 2000 This work was conducted at the Laser Biomedical Research Center of the Massachusetts Institute of Technology and was supported by grants from the Hamamatsu Corporation and the National Institutes of Health (NIH) through the National Center for Research Resources. A. Wax was supported by a National Research Service Award fellowship grant from the NIH.
Funders:
Funding AgencyGrant Number
Hamamatsu CorporationUNSPECIFIED
NIH Postdoctoral FellowshipUNSPECIFIED
Subject Keywords:Scattering measurements; Mie theory; Coherence; Interferometry
Issue or Number:6
Record Number:CaltechAUTHORS:WAXol01
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:WAXol01
Alternative URL:http://www.opticsinfobase.org/abstract.cfm?URI=ol-26-6-322
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3337
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:31 May 2006
Last Modified:02 Oct 2019 23:02

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