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U.S. Department of Energy
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RESEARCH AND INVESTIGATION LEADING TO METHODS OF GENERATING AND DETECTING RADIATION IN THE 100 TO 1000 MICRON WAVELENGTH RANGE OF THE SPECTRUM. Quarterly Progress Report No. 19 for September 1, 1960 to December 1, 1960

Technical Report ·
OSTI ID:4081298
Activities are reported in a program to uncover ways in which a CW source of electromagnetic radiation can be developed for low millimeter and submillimeter wavelengths and to develop ways of using radiation as a diagnostic tool for plasma physics. The approach to the generation problem presently being followed is discusspd. Results of frequency conversion in plasmas include mixing a 0.1-watt 11-kmc signal with a 10-watt 9-kmc signal (used simultaneously to produce ard maintain the discharge) to obtain a 20-kmc sum frequency with a conversion ratio of approximately 29 db. Verification of the computed electromagnetic modes in a gyromagnetic plasma was obtained, and data are being obtained on the behavior mode as a function of system parameters. In research on generation of millimeter and submillimeter coherent electromagnetic radiation, it was experimentally established that second coherence of a beam in a dielectric tube waveguide, cannot take place if the length of the guide is less than the spacing of the bunches. A Doppler frequence shift scheme was analyzed which was designed to change the input 3-kmc power to 82.7 kmc. (For preceding period see TID-6997.) (J.R.D.)
Research Organization:
Illinois. Univ., Urbana. Electrical Engineering Research Lab.
NSA Number:
NSA-15-011924
OSTI ID:
4081298
Report Number(s):
TID-11743
Country of Publication:
United States
Language:
English