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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 9 — May. 3, 2004
  • pp: 1879–1884

Imaging with a Terahertz quantum cascade laser

Juraj Darmo, Vincas Tamosiunas, Gernot Fasching, Josef Kröll, Karl Unterrainer, Mattias Beck, Marcella Giovannini, Jerome Faist, Christian Kremser, and Paul Debbage  »View Author Affiliations

Optics Express, Vol. 12, Issue 9, pp. 1879-1884 (2004)

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We demonstrate bio-medical imaging using a Terahertz quantum cascade laser. This new optoelectronic source of coherent Terahertz radiation allows building a compact imaging system with a large dynamic range and high spatial resolution. We obtain images of a rat brain section at 3.4 THz. Distinct regions of brain tissue rich in fat, proteins, and fluid-filled cavities are resolved showing the high contrast of Terahertz radiation for biological tissue. These results suggest that continuous-wave Terahertz imaging with a carefully chosen wavelength can provide valuable data on samples of biological origin; these data appear complementary to those obtained from white-light images.

© 2004 Optical Society of America

OCIS Codes
(110.3080) Imaging systems : Infrared imaging
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers

ToC Category:
Research Papers

Original Manuscript: February 26, 2004
Revised Manuscript: April 16, 2004
Published: May 3, 2004

Juraj Darmo, Vincas Tamosiunas, Gernot Fasching, Josef Kröll, Karl Unterrainer, Mattias Beck, Marcella Giovannini, Jerome Faist, Christian Kremser, and Paul Debbage, "Imaging with a Terahertz quantum cascade laser," Opt. Express 12, 1879-1884 (2004)

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