An experimental report on correlated-photon ellipsometry

Kimani C. Toussaint Jr.; Giovanni Di Giuseppe; Alexander V. Sergienko; Bahaa E. A. Saleh; Malvin C. Teich

doi:10.1117/12.505616

12 December 2003 An experimental report on correlated-photon ellipsometry

Kimani C. Toussaint Jr., Giovanni Di Giuseppe, Alexander V. Sergienko, Bahaa E. A. Saleh, Malvin C. Teich

Proceedings Volume 5158, Polarization Science and Remote Sensing; (2003) https://doi.org/10.1117/12.505616
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

Traditional ellipsometric measurements are limited in their accuracy because of the use of an external reference sample for calibration, and because of the noise inherent in the source at low light levels. We demonstrate that these limitations can be circumvented by using a non-classical source of light, namely, twin photons generated by the process of spontaneous parametric downconversion, in conjunction with a novel polarization interferometer and coincidence-counting detection scheme. The twin-photon nature of the source is a unique feature of our scheme. We are guaranteed, on the detection of a photon in one of the arms of the setup, that its twin will be in the other. We present experimental results showing how the technique operates.

Citation Download Citation

Kimani C. Toussaint Jr., Giovanni Di Giuseppe, Alexander V. Sergienko, Bahaa E. A. Saleh, and Malvin C. Teich "An experimental report on correlated-photon ellipsometry", Proc. SPIE 5158, Polarization Science and Remote Sensing, (12 December 2003); https://doi.org/10.1117/12.505616

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