An Optoelectronic CW THz Source for Imaging Applications

Abstract

We report on optoelectronic generation of continuous-wave (cw) THz radiation from a two-colour Ti:sapphire laser source. The laser emits two beams with a frequency difference between 1 GHz and 50 THz simultaneously. For the photomixing of the two frequencies, planar dipole and microstrip patch antennas based on low-temperature-grown (LT-)GaAs are examined. THz powers up to 60 nW at 450 GHz are achieved. Potential applications of this cw THz source for imaging are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Sep 29, 2000
Accession Number
ADP011777

Entities

People

  • Gregor Segschneider
  • Hartmut G. Roskos
  • Holger Quast
  • Karsten Siebert
  • Soenke Tautz

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Continuous Waves
  • Data Acquisition
  • Detection
  • Electromagnetic Radiation
  • Femtosecond Lasers
  • Frequency
  • Laser Diodes
  • Lasers
  • Light (Electromagnetic Radiation)
  • Low Temperature
  • Measurement
  • Pattern Recognition
  • Radiation
  • Resonance
  • Semiconductors
  • Spectra
  • Terahertz Radiation

Fields of Study

  • Materials science
  • Physics

Readers

  • Optical Physics and Photonics.
  • Phased Array Antenna Design.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Directed Energy
  • Microelectronics