Abstract
Using a two-dimensional CCD array, a photoelastic modulator, and a commercial Nomarski microscope, we built a differential polarization interferometer. Multichannel lock-in detection of the signal allowed us to reach a shot-noise limit corresponding to 5-pm path differences for a few seconds of recording time. This interferometer was used as a surface profilometer as well as a system for imaging through scattering media.
© 1997 Optical Society of America
Full Article | PDF ArticleMore Like This
E. Beaurepaire, A. C. Boccara, M. Lebec, L. Blanchot, and H. Saint-Jalmes
Opt. Lett. 23(4) 244-246 (1998)
A. Dubois, A. C. Boccara, and M. Lebec
Opt. Lett. 24(5) 309-311 (1999)
Johannes F. de Boer, Thomas E. Milner, Martin J. C. van Gemert, and J. Stuart Nelson
Opt. Lett. 22(12) 934-936 (1997)