Accession Number:

ADA191089

Title:

Enhanced Backscattering from Rough Surfaces.

Descriptive Note:

Periodic rept. no. 1,

Corporate Author:

IMPERIAL COLL OF SCIENCE AND TECHNOLOGY LONDON (UNITED KINGDOM)

Personal Author(s):

Report Date:

1987-10-09

Pagination or Media Count:

5.0

Abstract:

Further photoresist surfaces have been prepared, but are not yet fully characterized by Talysurf and optical microscopy. Results of infra-red 10.6 microns scattering for I sub ss, I sub sp, I sub pp and I sub ps from one of these surfaces are given overleaf. This is the first really conclusive piece of evidence that we are getting significantly different behaviour for s and p incident polarizations. Curves are given for angles of incidence of 0 and 30 deg. Note the tendency of the cross-polarized return to maximize towards backscatter and the quite different shapes of the I sub ss and I sub pp curves at 30 deg angle of incidence. Although the rms surface height approx 1 micron is very much less than one wavelength, the Rayleigh parameter R 4 pi sigma sub hlambda is not small in the perturbation sense.

Subject Categories:

  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE