Accession Number : AD0432597


Title :   DEVELOPMENT OF MILLIMETER AND SUBMILLIMETER MASER DEVICES.


Descriptive Note : Interim technical rept. no. 3, 1 Oct 6331 Jan 64,


Corporate Author : WESTINGHOUSE DEFENSE AND SPACE CENTER BALTIMORE MD


Personal Author(s) : HUGHES,W E


Report Date : 31 Jan 1964


Pagination or Media Count : 30


Abstract : The third reporting period has been devoted to the study of iron doped (Fe3+) zinc tungstate (Zn WO4) as a possible new quantum amplifier material. The solutions to the spin Hamiltonian have been obtained so that identification of energy levels is possible, and a computer program for the solution of radiation-induced transition probabilities has established. Since the dielectric constant of the zinc tungstate is considerably lower than that of the materials used previously, it has been necessary to make several changes in the experimental apparatus. Several pumping techniques, including the five level technique, will be investigated in zinc tungstate. During this period, operating points were chosen from the computer solutions of the Hamiltonian. (Author)


Descriptors :   MILLIMETER WAVES , IRON , TUNGSTEN ALLOYS , ZINC ALLOYS , DIELECTRIC PROPERTIES , CAVITY RESONATORS , PUMPING(ELECTRONICS) , MATHEMATICAL ANALYSIS , QUANTUM THEORY


Distribution Statement : APPROVED FOR PUBLIC RELEASE