Polarization gated imaging in turbid media: a study with Monte Carlo simulation

Wei Li; Hanrong Shao; Honghui He; Yonghong He; Hui Ma

doi:10.1117/12.741110

1 May 2007 Polarization gated imaging in turbid media: a study with Monte Carlo simulation

Wei Li, Hanrong Shao, Honghui He, Yonghong He, Hui Ma

Proceedings Volume 6534, Fifth International Conference on Photonics and Imaging in Biology and Medicine; 65340A (2007) https://doi.org/10.1117/12.741110
Event: Fifth International Conference on Photonics and Imaging in Biology and Medicine, 2006, Wuhan, China

Abstract

Polarized light has been increasingly used in biomedical imaging to study the optical properties of biological tissues or enhance the imaging contrast by eliminating the scattered light. In this report, we combine polarization gating and Fourier gating to suppress interference by the diffusive photons and improve the quality of projection images. A Monte Carlo simulation is utilized to study the propagation of different polarized light through turbid media. Polarization of a photon is represented by a Stokes vector and the scattering matrix is calculated from Mie theory. By tracing the trajectory and the polarization of the photons, spatial distribution and polarization of photons transmitted through a spatial filter aperture are simulated. It is shown that polarization gating and Fourier gating can effectively reject the multiple scattered photons and improve the contrasts of the images. Differences between linearly and circularly polarized lights for scatterers of different size are compared. However, for large particles, effects of both gating techniques are limited.

Citation Download Citation

Wei Li, Hanrong Shao, Honghui He, Yonghong He, and Hui Ma "Polarization gated imaging in turbid media: a study with Monte Carlo simulation", Proc. SPIE 6534, Fifth International Conference on Photonics and Imaging in Biology and Medicine, 65340A (1 May 2007); https://doi.org/10.1117/12.741110

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