Terahertz Sideband-tuned Quantum Cascade Laser Radiation

Abstract

A compact, tunable, narrowband terahertz source was demonstrated by mixing a single longitudinal mode 2.408 THz, free running quantum cascade laser with a 2-20 GHz microwave sweeper in a conventional corner-cube-mounted Schottky diode. The sideband spectra were characterized with a Fourier transform spectrometer, and the radiation was tuned through several D2O rotational transitions to estimate the longer term (t greater than or equal to several sec) bandwidth of the source. A spectral resolution of 2 MHz in CW regime was observed.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Mar 31, 2008
Accession Number
ADA482047

Entities

People

  • Andrew J. Gatesman
  • Andriy A. Danylov
  • Jerry Waldman
  • Jin Li
  • Kurt J. Linden
  • Robert H. Giles
  • Thomas M. Goyette
  • William D. Goodhue
  • William E. Nixon

Organizations

  • University of Massachusetts Lowell

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Bandwidth
  • Diodes
  • Frequency
  • Laser Beams
  • Lasers
  • Measurement
  • Optics
  • Quantum Cascade Lasers
  • Radiation
  • Repetition Rate
  • Schottky Diodes
  • Sidebands
  • Spectra
  • Spectroscopy
  • Terahertz Radiation
  • Transitions

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Spectroscopy.

Technology Areas

  • Directed Energy
  • Quantum Computing