Imaging with a Terahertz quantum cascade laser | Zendy

J. Darmo | Zendy; V. Tamošiūnas | Zendy; G. Fasching | Zendy; Josef Kr�ll | Zendy; K. Unterrainer | Zendy; Mattias Beck | Zendy; Marcella Giovannini | Zendy; Jérôme Faist | Zendy; Christian Kremser | Zendy; Paul Debbage | Zendy

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Imaging with a Terahertz quantum cascade laser

Author(s) -

J. Darmo,

V. Tamošiūnas,

G. Fasching,

Josef Kr�ll,

K. Unterrainer,

Mattias Beck,

Marcella Giovannini,

Jérôme Faist,

Christian Kremser,

Paul Debbage

Publication year - 2004

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/opex.12.001879

Subject(s) - terahertz radiation , optics , photomixing , quantum cascade laser , laser , far infrared laser , terahertz spectroscopy and technology , cascade , radiation , optoelectronics , medical imaging , wavelength , biological imaging , physics , terahertz metamaterials , materials science , computer science , chemistry , chromatography , artificial intelligence , fluorescence

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.

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