title: Imaging with a Terahertz quantum cascade laser.
abstract: 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.
authors.forename: Juraj
authors.initials: J
authors.lastname: Darmo
authors.forename: Vincas
authors.initials: V
authors.lastname: Tamosiunas
authors.forename: Gernot
authors.initials: G
authors.lastname: Fasching
authors.forename: Josef
authors.initials: J
authors.lastname: Kröll
authors.forename: Karl
authors.initials: K
authors.lastname: Unterrainer
authors.forename: Mattias
authors.initials: M
authors.lastname: Beck
authors.forename: Marcella
authors.initials: M
authors.lastname: Giovannini
authors.forename: Jerome
authors.initials: J
authors.lastname: Faist
authors.forename: Christian
authors.initials: C
authors.lastname: Kremser
authors.forename: Paul
authors.initials: P
authors.lastname: Debbage