Reflectometer for pseudo-Brewster angle spectrometry (BAIRS)

Roy F. Potter

doi:10.1117/12.403574

11 October 2000 Reflectometer for pseudo-Brewster angle spectrometry (BAIRS)

Roy F. Potter

Proceedings Volume 4103, Optical Diagnostic Methods for Inorganic Materials II; (2000) https://doi.org/10.1117/12.403574
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

A simple, robust reflectometer, pre-set for several angles of incidence (AOI), has been designed and used for determining the optical parameters of opaque samples having a specular surface. A single, linear polarizing element permits the measurement of perpendicular(s) and parallel (p) reflectence at each AOI. The BAIRS algorithm determines the empirical optical parameters for the subject surface at the pseudo-Brewster AOI, based on the measurement of p/s at two AOI's and, in turn the optical constants n and k (or (epsilon) ₁ and (epsilon) ₂). Radiation sources in current use, are a stabilized tungsten-halide lamp or a deuterium lamp for the visible and near UV spectral regions. Silica fiber optics and lenses deliver input and output radiation from the source and to a CCD array scanned diffraction spectrometer. Results for a sample of GaAs will be presented along with a discussion of dispersion features in the optical constant spectra.

Citation Download Citation

Roy F. Potter "Reflectometer for pseudo-Brewster angle spectrometry (BAIRS)", Proc. SPIE 4103, Optical Diagnostic Methods for Inorganic Materials II, (11 October 2000); https://doi.org/10.1117/12.403574

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available