Accession Number:

ADA482047

Title:

Terahertz Sideband-tuned Quantum Cascade Laser Radiation

Descriptive Note:

Journal article

Corporate Author:

MASSACHUSETTS UNIV LOWELL SUBMILLIMETER-WAVE TECH LAB

Report Date:

2008-03-31

Pagination or Media Count:

11.0

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.

Subject Categories:

  • Lasers and Masers
  • Theoretical Mathematics
  • Atomic and Molecular Physics and Spectroscopy
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE