Coherent backscattering of polarized light for tissue diagnostics: an electric field Monte Carlo study

Min Xu

doi:10.1117/12.762399

20 February 2008 Coherent backscattering of polarized light for tissue diagnostics: an electric field Monte Carlo study

Min Xu

Proceedings Volume 6854, Optical Interactions with Tissue and Cells XIX; 68541A (2008) https://doi.org/10.1117/12.762399
Event: SPIE BiOS, 2008, San Jose, California, United States

Abstract

We report on a novel Electric field Monte Carlo (EMC) approach for directly simulating coherent backscattering (CBS) of coherent or partially coherent polarized light. The strong dependence of CBS on the polarization state of light is first demonstrated. The penetration depth of low coherence backscattering light is then investigated using the EMC approach. EMC simulations of linearly polarized light backscattering from a human epithelial tissue model show that the penetration depth of low coherence backscattering light is reduced to the level of one scattering length under illumination by a source of an extreme low spatial coherence. The penetration depth less than one scattering length has not been obtained even when the spatial coherence length is shortened to be one percent of the scattering mean free path. It is found that the penetration depth of low coherence backscattering light may remain orders of magnitude larger than the spatial coherence length of the partially coherent source when the coherence length is shortened in an attempt to shrink the probing depth of light. This calls for a careful interpretation of the penetration depth for low coherence backscattering techniques applied to tissue diagnostics.

Citation Download Citation

Min Xu "Coherent backscattering of polarized light for tissue diagnostics: an electric field Monte Carlo study", Proc. SPIE 6854, Optical Interactions with Tissue and Cells XIX, 68541A (20 February 2008); https://doi.org/10.1117/12.762399

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Backscatter

Light scattering

Scattering

Monte Carlo methods

Polarization

Spatial coherence

Tissue optics

Show All Keywords

Keywords/Phrases

Search In:

Publication Years