Frequency Agile THz Detectors for Multiplicative Mixing

Abstract

A novel FET-based terahertz multiplicative mixer was demonstrated with a terahertz homodyne mixer system. The first fabricated devices operated at 370 GHz and achieved NEPmix (mixer noise equivalent power) of 1 nW/Hz with PLO (local oscillator power) of 8 W. After design revisions, the operating frequency of the second generation devices was raised to 570 GHz (NEPmix = 26.4 nW/Hz with PLO = 1.5W). The measured performance metrics (NEP and PLO) are consistent with our long term goal of building an imager array with a single quasi-optically coupled mW-level LO source.

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Document Details

Document Type
Technical Report
Publication Date
Sep 29, 2011
Accession Number
ADA552127

Entities

People

  • Sangwoo Kim

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Demographic Cohorts
  • Detectors
  • Electronic Equipment
  • Frequency
  • Frequency Bands
  • Local Oscillators
  • Oscillators
  • Radio Frequency
  • Radio Frequency Oscillators

Readers

  • Electronics Engineering
  • Image Processing and Computer Vision.