Fourier-domain low-coherence interferometry for light-scattering spectroscopy
- Creators
- Wax, Adam
- Yang, Changhuei
- Izatt, Joseph A.
Abstract
We present a novel method for obtaining depth-resolved spectra for determining scatterer size through elastic- scattering properties. Depth resolution is achieved with a white-light source in a Michelson interferometer with the mixed signal and reference fields dispersed by a spectrograph. The spectrum is Fourier transformed to yield the axial spatial cross correlation between the signal and reference fields with near 1 m m depth resolution. Spectral information is obtained by windowing to yield the scattering amplitude as a function of wave number. The technique is demonstrated by determination of the size of polystyrene microspheres in a subsurface layer with subwavelength accuracy. Application of the technique to probing the size of cell nuclei in living epithelial tissues is discussed.
Additional Information
© 2003 Optical Society of America Received February 10, 2003Attached Files
Published - WAXol03.pdf
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Additional details
- Eprint ID
- 3335
- Resolver ID
- CaltechAUTHORS:WAXol03
- Created
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2006-05-31Created from EPrint's datestamp field
- Updated
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2020-03-09Created from EPrint's last_modified field