title: Terahertz quasi-time-domain spectroscopy imaging.
abstract: We demonstrate terahertz (THz) imaging with a quasi-time-domain spectrometer. This type of THz system is inexpensive, compact, and relatively easy to set up. Beating the simultaneously emitted equidistant modes of a compact diode laser allows for analysis of samples at multiple frequencies with a single measurement. Thus, this technique merges the potential of terahertz time-domain spectrometers with the simplicity of continuous wave lasers. Multiple imaging applications and stability issues are discussed.
authors.affiliation: Fachbereich Physik, Philipps Universität Marburg, Renthof 5, 35032 Marburg, Germany. maik.scheller@physik.uni‐marburg.de
authors.forename: Maik
authors.initials: M
authors.lastname: Scheller
authors.forename: Stefan F
authors.initials: SF
authors.lastname: Dürrschmidt
authors.forename: Matthias
authors.initials: M
authors.lastname: Stecher
authors.forename: Martin
authors.initials: M
authors.lastname: Koch