In this paper, we address the needs of the FIR space-flight community, providing an introductory-level treatment of the common heterodyne receiver configurations and the state of technology for various front-end components.

far-infrared terahertz oscillator frequency source↗

NASA NTRS2000

Tunable Terahertrz Source

Explore the source record for details and available documents.

photomixer Tunable Terahertz↗

NASA NTRS2000

Tunable Terahertz Source

Explore the source record for details and available documents.

photomixer tunable terahertz↗

NASA NTRS2000

Submillimeter-wave Spectral Response of Twin Slot Antennas Coupled to Hot Electron Bolometers

In this study we have measured mixers with a wide range of twin-slot antennas with slot lengths ranging from 26 meu up to 152 meu.

Hot Electron Bolometer Twin-Slot Antenna↗

NASA NTRS1999

Noise and Bandwidth Measurements of Diffusion-Cooled Nb Hot-Electron Bolometer Mixers at Frequencies Above the Superconductive Energy Gap

Diffusion-cooled Nb hot-electron bolometer (HEB) mixers have the potential to simultaneously achieve high intermediate frequency (IF) bandwidths and low mixer noise temperatures for operation at THz frequencies (above the superconductive gap energy).

Sub-mm↗

NASA NTRS1998

Low-noise and Wideband Hot-Electron Superconductive Mixers for THz Frequencies

Superconductive hot-electron bolometer (HEB) mixers have been built and tested in the frequency range from 1.1 THz to 2.5 THz.

local oscillator Stratospheric Observatory for Inf↗