Accession Number : AD0251054

Title :   A STUDY OF THE FAR INFRARED PROPERTIES OF CRYSTALS

Corporate Author : WASHINGTON SQUARE COLL OF ARTS AND SCIENCE NEW YORK

Personal Author(s) : HATCHER, R.D.

Report Date : 31 AUG 1960

Pagination or Media Count : 1

Abstract : An exact solution has been obtained for scattering of plane electromagnetic waves of arbitrary polarization and arbitrary angle of incidence on an infinitely long metal strip. Previously, exact results have been reported only for the special case of incidence in a plane normal to the axis of the strip. In this special case, the problem may be reduced to a two dimensional solution of the scalar Helmholtz equation. In the general case solution of the vector Helmholtz equation in three dimensions is required. The resulting Mathieu function expansions involve a parameter which in the special case depends only on the ratio of strip width to wavelength, whereas, in the case of arbitrary incidence, the parameter is a function of the angle between the incident propagation vector and the strip axis as well. Asymptotic expressions have been found for the far field solutions in cylindrical and spherical coordinate representation. AD-251 055Div. 2U (21 Feb 61) 638300New York U. Coll. of Engineering, N. Y. THE POWER SPECTRAL ANALYSIS OF CONCURRENT AIRPLANE AND TOWER MEASUREMENTS OF ATMOSPHERIC TURBULENCE, by U. Oscar Lappe and Ben Davidson. Final rept. Jan 60, 1v. incl. illus. tables, 12 refs. (Contract NOa(s) 58-517-d) Unclassified report DESCRIPTORS: *Atmosphere,

Descriptors :   *CRYSTALS, *INFRARED SPECTROPHOTOMETERS, ELECTROMAGNETIC RADIATION, INFRARED RADIATION, INFRARED SPECTROSCOPY, MATHEMATICAL ANALYSIS, OPTICAL ANALYSIS, OPTICS, REFRACTION, REFRACTIVE INDEX, THEORY.

Distribution Statement : APPROVED FOR PUBLIC RELEASE