Accession Number : ADD009864
Title : Submillimeter Wave Frequency Shifter.
Descriptive Note : Patent Application,
Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC
Personal Author(s) : Tanton,George A ; Meyer,Harry C ; Osmundsen,James F
Report Date : 30 Aug 1982
Pagination or Media Count : 8
Abstract : Laser radiation whose wavelength is in the submillimeter wave spectral region is sent through an intercavity dielectric tube positioned inside a coil. The tube contains a gas having large dipole moments and which may be of the same kind as the input beams lasing gas. In response to current there through the coil produces an axial magnetic field. The direction of the magnetic field is parallel to the propagation of light transmitted through the dielectric tube. The frequency of the submillimeter wave laser radiation in the tube is shifted from its normal value. The amount of shift is determined by the current in the coil since the resulting magnetic field produces a change in the mean index of refraction of the gas. Thus, the change in index of refraction causes a shift in the laser radiation frequency because the gas within the coil is also located within the submillimeter wave listing cavity.
Descriptors : *Patent applications, *Phase shift, *Molecular spectroscopy, *Laser beams, Refractive index, Magnetic fields, Dipole moments, Submillimeter waves, Chlorinated hydrocarbons, Indexes, Ethylenes, Axes, Methanes, Fluorinated hydrocarbons, Carbon dioxide lasers, Gases, Mean, Frequency
Subject Categories : Lasers and Masers
Atomic and Molecular Physics and Spectroscopy
Distribution Statement : APPROVED FOR PUBLIC RELEASE