Quantitative phase imaging using actively stabilized phase-shifting low-coherence interferometry
Optics Letters, Vol. 29, Issue 20, pp. 2399-2401 doi:10.1364/OL.29.002399
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- OCIS Codes:
- (120.3180) Instrumentation, measurement, and metrology : Interferometry
- (170.3880) Medical optics and biotechnology : Medical and biological imaging
Citation
Hidenao Iwai, Christopher Fang-Yen, Gabriel Popescu, Adam Wax, Kamran Badizadegan, Ramachandra R. Dasari, and Michael S. Feld, "Quantitative phase imaging using actively stabilized phase-shifting
low-coherence interferometry," Opt. Lett. 29, 2399-2401 (2004)
http://www.opticsinfobase.org/abstract.cfm?URI=ol-29-20-2399
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We describe a quantitative phase-imaging interferometer in which phase shifting and noise cancellation are performed by an active feedback loop using a reference laser. Depth gating via low-coherence light allows phase measurement from weakly reflecting biological samples. We demonstrate phase images from a test structure and living cells.
© 2004 Optical Society of America
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