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Nonlinear phase dispersion spectroscopy |
Optics Letters, Vol. 36, Issue 23, pp. 4665-4667 (2011)
http://dx.doi.org/10.1364/OL.36.004665
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Abstract
Nonlinear phase dispersion spectroscopy is introduced as a means to retrieve wideband, high spectral resolution profiles of the wavelength-dependent real part of the refractive index. The method is based on detecting dispersion effects imparted to a light field with low coherence transmitted through a thin sample and detected interferometrically in the spectral domain. The same sampled signal is also processed to yield quantitative phase maps and spectral information regarding the total attenuation coefficient using spectral-domain phase microscopy and spectroscopic optical coherence tomography (SOCT), respectively. Proof-of-concept experiments using fluorescent and nonfluorescent polystyrene beads and another using a red blood cell demonstrate the ability of the method to quantify various absorptive/dispersive features. The increased sensitivity of this method, novel to our knowledge, is compared to intensity-based spectroscopy (e.g., SOCT), and potential applications are discussed.
© 2011 Optical Society of America
OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(180.0180) Microscopy : Microscopy
(300.0300) Spectroscopy : Spectroscopy
ToC Category:
Medical Optics and Biotechnology
History
Original Manuscript: August 24, 2011
Manuscript Accepted: October 10, 2011
Published: November 30, 2011
Virtual Issues
Vol. 7, Iss. 2 Virtual Journal for Biomedical Optics
Citation
Francisco E. Robles, Lisa L. Satterwhite, and Adam Wax, "Nonlinear phase dispersion spectroscopy," Opt. Lett. 36, 4665-4667 (2011)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-36-23-4665
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