New developments in non-invasive biomedical optics

Frits F. M. de Mul

doi:10.1117/12.446708

23 October 2001 New developments in non-invasive biomedical optics

Frits F. M. de Mul

Proceedings Volume 4606, Laser Florence 2000: A Window on the Laser Medicine World; (2001) https://doi.org/10.1117/12.446708
Event: Laser Florence 2000: A Window on the Laser Medicine World, 2000, Florence, Italy

Abstract

We will present an overview of some new optical diagnostic techniques that have emerged in the past few years. Among those: *Photon Transillumination of Tissue. Pulsed or modulated laser light is scattered and/or absorbed in tissue. The position of scattering layers and discrete absorbers will influence the pattern of light emerging from inside. Image analysis will reveal those positions. *Photoacoustics of Tissue. Not the emerging light but ultrasound waves, produced by adiabatic heating (approximately 1 K) of blood cells by absorption of laser photons, are detected at the surface. The relatively low sound velocity allows to perform time-of-flight measurements, thus enabling to obtain depth-sensitive information. *Laser Doppler Monitoring and Imaging. On one hand the traditional monitoring technique is being upgraded in a large-scale European Standardization project. On the other, new imaging techniques are emerging. Also, laser-Doppler using self-mixing techniques renders flow information from inside arteries.

Citation Download Citation

Frits F. M. de Mul "New developments in non-invasive biomedical optics", Proc. SPIE 4606, Laser Florence 2000: A Window on the Laser Medicine World, (23 October 2001); https://doi.org/10.1117/12.446708

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