ULTRASONIC TAGGING OF LIGHT - THEORY

Authors
MAHAN GD ENGLER WE TIEMANN JJ UZGIRIS E
Citation
Gd. Mahan et al., ULTRASONIC TAGGING OF LIGHT - THEORY, Proceedings of the National Academy of Sciences of the United Statesof America, 95(24), 1998, pp. 14015-14019
Citations number
25
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Proceedings of the National Academy of Sciences of the United Statesof America → ACNP
ISSN journal
00278424
Volume
95
Issue
24
Year of publication
1998
Pages
14015 - 14019
Database
ISI
SICI code
0027-8424(1998)95:24<14015:UTOL-T>2.0.ZU;2-X
Abstract
A theory is provided for the detection efficiency of diffuse light who se frequency is modulated by an acoustical wave. We derive expressions for the speckle pattern of the modulated light, as well as an express ion for the signal-to-noise ratio for the detector. The aim is to deve lop a new imaging technology for detection of tumors in humans. The ac oustic wave is focused into a small geometrical volume, which provides the spatial resolution for the imaging. The wavelength of the light w ave can be selected to provide information regarding the kind of tumor .