Photomultiplier Linearization And System Stabilization For Photometric Ellipsometers And Polarimeters

D. E. Aspnes; A. A. Studna

doi:10.1117/12.955543

19 October 1977 Photomultiplier Linearization And System Stabilization For Photometric Ellipsometers And Polarimeters

D. E. Aspnes, A. A. Studna

Proceedings Volume 0112, Optical Polarimetry: Instrumentation and Applications; (1977) https://doi.org/10.1117/12.955543
Event: 21st Annual Technical Symposium, 1977, San Diego, United States

Abstract

Modifications to standard photometric polarimeter systems that reduce measurement errors due to drift, digital noise, and stray light are described. For instruments using photo-multiplier (PM) detectors, a regulation and control circuit is discussed that also allows the linearity of the detector to be adjusted. The measured performance of a rotating-analyzer ellipsometer (RAE) using these modifications is as follows: Linearity to 5x10-4 over more than three orders of magnitude of incident light intensity, and stability to 5x10-5.

Citation Download Citation

D. E. Aspnes and A. A. Studna "Photomultiplier Linearization And System Stabilization For Photometric Ellipsometers And Polarimeters", Proc. SPIE 0112, Optical Polarimetry: Instrumentation and Applications, (19 October 1977); https://doi.org/10.1117/12.955543

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