Time-resolved optical phase space distributions for coherent backscatter

Adam Wax; Frank Reil; Kim Fook Lee; Samir Bali; John E. Thomas

doi:10.1117/12.381482

6 April 2000 Time-resolved optical phase space distributions for coherent backscatter

Adam Wax, Frank Reil, Kim Fook Lee, Samir Bali, John E. Thomas

Proceedings Volume 4001, Saratov Fall Meeting '99: Optical Technologies in Biophysics and Medicine; (2000) https://doi.org/10.1117/12.381482
Event: Saratov Fall Meeting '99, 1999, Saratov, Russian Federation

Abstract

We explore enhanced backscatter from a random medium using time-resolved optical phase space measurement, i.e. measurement ofjoint position and momentum (x, p) distributions of the light field as a function of propagation time in the medium. Enhanced backscatter is a coherent effect and is not predicted by radiative transport theories. By using a low-coherence source in a heterodyne detection scheme, we observe enhanced backscattering resolved by path length in the random medium, effectively providing timing resolution. Such time-resolved studies are important for exploring the evolution of optical coherence as a function of penetration depth in the random medium. Optical phase space methods provide a visual as well as quantitative method of characterizing the spatial coherence properties and wavefront curvature of the input and scattered fields. These techniques may provide new venues for using optical coherence in medical imaging.

Citation Download Citation

Adam Wax, Frank Reil, Kim Fook Lee, Samir Bali, and John E. Thomas "Time-resolved optical phase space distributions for coherent backscatter", Proc. SPIE 4001, Saratov Fall Meeting '99: Optical Technologies in Biophysics and Medicine, (6 April 2000); https://doi.org/10.1117/12.381482

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