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Proceedings Paper

Photomultiplier Linearization And System Stabilization For Photometric Ellipsometers And Polarimeters
Author(s): D. E. Aspnes; A. A. Studna
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Paper 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.

Paper Details

Date Published: 19 October 1977
PDF: 6 pages
Proc. SPIE 0112, Optical Polarimetry: Instrumentation and Applications, (19 October 1977); doi: 10.1117/12.955543
Show Author Affiliations
D. E. Aspnes, Bell Laboratories (United States)
A. A. Studna, Bell Laboratories (United States)

Published in SPIE Proceedings Vol. 0112:
Optical Polarimetry: Instrumentation and Applications
Rasheed M. A. Azzam; David Coffeen, Editor(s)

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