Ultrasonic tagging of light: theory.
نویسندگان
چکیده
A theory is provided for the detection efficiency of diffuse light whose frequency is modulated by an acoustical wave. We derive expressions for the speckle pattern of the modulated light, as well as an expression for the signal-to-noise ratio for the detector. The aim is to develop a new imaging technology for detection of tumors in humans. The acoustic wave is focused into a small geometrical volume, which provides the spatial resolution for the imaging. The wavelength of the light wave can be selected to provide information regarding the kind of tumor.
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عنوان ژورنال:
- Proceedings of the National Academy of Sciences of the United States of America
دوره 95 24 شماره
صفحات -
تاریخ انتشار 1998