The performance is discussed of 10-micron mercury-cadmiumtelluride and lead-tin-telluride photodiodes in laser heterodyne communication systems. The dependence of detector quantum efficiency, resistance, frequency response, and signal-to-noise ratio on temperature, bias, and local oscillator power are examined. Included in the discussion is an analysis of the feasibility of high temperature operation, and ability of the detector to dissipate power to a heat sink is explored. Some aspects of direct detection response are considered and figures showing flux levels from a blackbody presented
Analysis is presented of data obtained from Nimbus 3 infrared measurements of the Intertropical Conv...
Broad band photometer experiments in the 1200 to 3000 A have been operating on Nimbus 3 and 4 since ...
The theory of multiphoton ionization for an atomic system of arbitrary complexity is developed using...
Color excesses in B-V are determined indirectly from a study of Stromgren's b-y color for a sample o...
A self-consistent, two-dimensional, two-component diffusion model is presented to describe the diurn...
Numerical calculations of the generation and propagation of the two important fundamental symmetric ...
The flux of secondary protons below 100 MeV in interstellar space is calculated using detailed cross...
Fluxgate magnetometer data obtained by OGO-5 near perigee were used to establish the existence of la...
The relative cross sections for simultaneous ionization and excitation of helium by 200 eV electrons...
After a preliminary discussion of feasibility, new experimental work with a hydrogen beam is describ...
The charge composition of solar cosmic rays were measured during two flares occurring in April and S...
Frequency comparisons were made among five NASA hydrogen masers in 1969 and again in 1972 to a preci...
Using observed data for wide-band type IV solar radio bursts, the onset time differences between the...
The unidentified high latitude UHURU sources are shown to be consistent with an interpretation which...
At typical protonospheric electron densities, the electron mean free path is long enough that the co...
Analysis is presented of data obtained from Nimbus 3 infrared measurements of the Intertropical Conv...
Broad band photometer experiments in the 1200 to 3000 A have been operating on Nimbus 3 and 4 since ...
The theory of multiphoton ionization for an atomic system of arbitrary complexity is developed using...
Color excesses in B-V are determined indirectly from a study of Stromgren's b-y color for a sample o...
A self-consistent, two-dimensional, two-component diffusion model is presented to describe the diurn...
Numerical calculations of the generation and propagation of the two important fundamental symmetric ...
The flux of secondary protons below 100 MeV in interstellar space is calculated using detailed cross...
Fluxgate magnetometer data obtained by OGO-5 near perigee were used to establish the existence of la...
The relative cross sections for simultaneous ionization and excitation of helium by 200 eV electrons...
After a preliminary discussion of feasibility, new experimental work with a hydrogen beam is describ...
The charge composition of solar cosmic rays were measured during two flares occurring in April and S...
Frequency comparisons were made among five NASA hydrogen masers in 1969 and again in 1972 to a preci...
Using observed data for wide-band type IV solar radio bursts, the onset time differences between the...
The unidentified high latitude UHURU sources are shown to be consistent with an interpretation which...
At typical protonospheric electron densities, the electron mean free path is long enough that the co...
Analysis is presented of data obtained from Nimbus 3 infrared measurements of the Intertropical Conv...
Broad band photometer experiments in the 1200 to 3000 A have been operating on Nimbus 3 and 4 since ...
The theory of multiphoton ionization for an atomic system of arbitrary complexity is developed using...