A tunable birefringent Fabry-Perot interferometer.
Tunable birefringent Fabry-Perot interferometer used in study of solar magnetic fields, using Zeeman effect
SOLAR MAGNETIC FIELD↗
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A high-Q Fabry-Perot interferometer for water vapor absorption measurements in the 100 Gc/s to 300 Gc/s frequency range.
High Q Fabry-Perot interferometer for measurement of atmospheric gas losses, particularly water vapor absorption, using coherent light source in 100-300 gc frequency range
WATER VAPOR↗
Automatic control of the spacing of Fabry- Perot interferometers.
Automatic control of spacing of Fabry-Perot interferometers to transmit at given wavelength
FABRY-PEROT INTERFEROMETER↗
The arc spectrum of tin
Photographic investigation of arc spectrum of tin by plane and concave grating spectrographs and Fabry-Perot interferometers
PHOTOGRAPHIC MEASUREMENT↗
A high altitude measurement to determine the ratio of deuterium to hydrogen in the solar atmosphere Quarterly status report, 1 Jun. - 31 Aug. 1965
High altitude measurement to determine ratio of deuterium to hydrogen in solar atmosphere - Fabry-Perot interferometer
HYDROGEN↗
Observation of certain weak emissions of the night sky by the electron telescopy method
H-alpha line emission in night airglow and helium emission of night airglow with fabry-perot interferometer and electronic image converter
H-ALPHA LINE↗
Investigation of the propagation of milli- meter and submillimeter waves monthly letter report, 1 - 31 oct. 1964
Fabry-Perot interferometer investigations for techniques of millimeter wave measurements and accurate attenuation
FABRY-PEROT INTERFEROMETER↗
Investigation of a proposed technique for measurements of dielectric constants and losses at V-band using the Fabry-Perot principle
Fabry-Perot interferometer to measure dielectric constants and loss tangents at V-band
DIELECTRIC CONSTANT↗
A High Altitude Measurement to Determine the Ratio of Deuterium to Hydrogen in the Solar Atmosphere Final Report, 1 Jun. 1965 - 30 Mar. 1966
Fabry-Perot interferometers used to determine ratio of deuterium to hydrogen in solar atmosphere
SOLAR ATMOSPHERE↗
Reduction of infrared maser losses by cavity tubing.
Reflection coefficient of cavity tubing as explanation for power level of helium-neon IR FABRY-PEROT interferometer
INFRARED MASER↗
Brillouin scattering in liquids excited by the he-ne maser.
Brillouin scattering in liquids excited by He-Ne maser and observed by Fabry-Perot interferometer, noting acoustic wave velocity and line broadening
ACOUSTIC VELOCITY↗
Arc spectrum of silicon.
Arc spectrum of silicon at low pressure measured with plane and concave grating spectrographs and Fabry-Perot interferometers, identifying new solar lines and energy levels
SOLAR SPECTRUM↗
Measurement of the velocity of light Annual report
Measurement of velocity of light - use of interferometer
VELOCITY MEASUREMENT↗
Optical interference filter for hg 1849 angstrom units.
Modified Al-dielectric-Al Fabry-Perot interference filter for isolating Hg 1849 angstrom emission line from Hg 2536 angstrom line
MERCURY LIGHT↗
Optical determination of temperature variations throughout the solar corona during the eclipse of May 30, 1965 Final report, 1 Feb. - 31 Jul. 1965
Optical determination of temperature variations throughout solar corona during eclipse of May 30, 1965
OPTICAL MEASUREMENT↗
Isotope shift measurement for 6328 angstrom units He-Ne laser transition.
Isotope shift measurement for 6328 angstroms helium-neon laser transition
FABRY-PEROT INTERFEROMETER↗
Tunable coupling for semiconfocal Fabry-Perot cavity in 150 to 500 Gc region.
Tunable coupling of open waveguide type for semiconfocal Fabry-Perot cavity gives high transmission and high Q
WAVEGUIDE TUNER↗