Accession Number : AD0712662

Title :   RADIATIVE EMISSION FROM N-S POINT CONTACTS.

Descriptive Note : Progress rept.,

Corporate Author : GEORGETOWN UNIV WASHINGTON D C DEPT OF PHYSICS

Personal Author(s) : Gregory,W. D. ; Leopold,L. ; Bostock,J. ; Averill,R. F. ; Repici,D.

Report Date : SEP 1970

Pagination or Media Count : 24

Abstract : The purpose of the contract is to study the mechanism for radiative emission from N-S point contacts previously reported by the principal investigators. During the first three months of operation the authors have succeeded in transmitting the radiation from the N-S contacts out of the cryostat vessel and into the room temperature environment using microwave techniques, begun studies of the effects of tip geometry on the observed radiation, established that a 'weak link' model best fits the IV characteristics of the junctions under study, and obtained additional evidence for threshold behaviour using box integrator signal sampling techniques.

Descriptors :   (*COHERENT RADIATION, SOURCES), CRYOGENICS, CRYOSTATS, TEST METHODS, THERMAL RADIATION, INFRARED RADIATION, LASERS

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE