Accession Number : ADA324839

Title :   The Measurement of Spatial and Temporal Distribution of Radiation, Using a Talbot Spectrometer.

Descriptive Note : Final rept. 1 Jul 71-30 Jun 72,

Corporate Author : CALIFORNIA UNIV SAN DIEGO LA JOLLA DEPT OF APPLIED PHYSICS AND INFORMATION SC IENCE

Personal Author(s) : Lohmann, Adolf W. ; Silva, Donald E.

PDF Url : ADA324839

Report Date : 30 JUN 1972

Pagination or Media Count : 111

Abstract : Our goal was to measure the distribution of radiation S as a function of its angular coordinates alpha, beta and its wavelength lamda. We first measured S(alpha), i.e. the distribution of radiation as a function of one angular coordinate. From this we learned how critical the various parameters of our instrument, such as collimation and the gratings substrate flatness, were to its successful operation. These investigations led to the design of new interferometric test instruments which include an autocollimator, and a lateral and radial shearing interferometer. Finally a theoretical study of an instrument to measure S(alpha, beta, lamda) was accomplished.

Descriptors :   *RADIATION, *GRATINGS(SPECTRA), *OPTICAL INTERFEROMETERS, *COORDINATES, FOURIER TRANSFORMATION, ANGLES, SPATIAL DISTRIBUTION, SUBSTRATES, OPTICAL IMAGES, COLLIMATORS.

Subject Categories : Optics
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE