Femtosecond time-resolved backscattering from strongly scattering media

Christoph G. Hauger; T. Wilhelm; E. Baigar; Wolfgang Zinth

doi:10.1117/12.200849

31 January 1995 Femtosecond time-resolved backscattering from strongly scattering media

Christoph G. Hauger, T. Wilhelm, E. Baigar, Wolfgang Zinth

Proceedings Volume 2326, Photon Transport in Highly Scattering Tissue; (1995) https://doi.org/10.1117/12.200849
Event: International Symposium on Biomedical Optics Europe '94, 1994, Lille, France

Abstract

Time-resolved backscattering from randomly scattering media is studied experimentally with the aim of human skin diagnosis. The experimental setup consists of a self-modelocked Ti:Sapphire laser and a light gating technique based on sum-frequency generation. Aqueous solutions of latex microspheres were used as scattering medium. The experimentally determined temporal profiles of the recorded backscattered photons significantly depend on the specific conditions of the whole optical system. A systematic variation of the optical parameters was performed and an optimum arrangement was determined. In a first set of experiments, relatively weak concentrations of the scatterers were investigated and scattering lengths were determined. In a second series of experiments two-layered samples of latex suspensions with scattering properties similar to human skin were studied. Under these scattering conditions penetration depths of more than 1 mm could be obtained.

Citation Download Citation

Christoph G. Hauger, T. Wilhelm, E. Baigar, and Wolfgang Zinth "Femtosecond time-resolved backscattering from strongly scattering media", Proc. SPIE 2326, Photon Transport in Highly Scattering Tissue, (31 January 1995); https://doi.org/10.1117/12.200849

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