Modern Optics and Spectroscopy
Changhuei Yang, California Institute of Technology
"Lighting ways in Biomedicine"
September 25 , 2007
12:00 noon - 1:00 p.m. Grier Room 34-401
Biophotonics is a rapidly evolving research area aimed at providing new light-based imaging, diagnostic and therapeutic tools for biologists and clinicians. I will be talking about two areas of biophotonics research that are occurring in my lab.
The Optofluidic Microscope – A microscope the size of Washington's nose on a quarter, that does not contain any lenses and is yet able to image with better resolution than a typical microscope. The application range of this invention is wide: it can change the way biologists think about and use microscope, it enables clinical point-of-care blood and urine analysis, and it can improve Third World heathcare by providing cheap and rugged microscope units.
Tissue Scattering Suppression by Time Reversal Phase Conjugation – An approach for turning biological tissues transparent through the use of holography. Light scattering in tissues may look random but their trajectories are deterministic. As such, it is possible to create a situation where light scattered from a tissue will retrace their paths through the tissue. I will report on our initial findings and point out a few applications for such a phenomenon.
TUESDAYS, 12:00-1:00, GRIER ROOM (34-401)
Refreshments served following the seminar
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Co-sponsored by the George R. Harrison
the Department of Electrical
Engineering and Computer Science and
the School of
Science, Massachusetts Institute