z-logo
open-access-imgOpen Access
Imaging with THz quantum cascade lasers using a Schottky diode mixer
Author(s) -
S. Barbieri,
Jesse Alton,
Colin Baker,
Thomas Lo,
Harvey E. Beere,
D. A. Ritchie
Publication year - 2005
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.13.006497
Subject(s) - terahertz radiation , optics , laser , cascade , materials science , quantum cascade laser , diode , optoelectronics , schottky diode , semiconductor laser theory , physics , chemistry , chromatography
An imaging system in reflection geometry based on a multimode 2.9 THz quantum cascade laser as radiation source is reported. The beating between neighbouring longitudinal modes is detected using a room temperature point-contact Schottky diode as mixing element. We show that the technique can, in principle, give a dynamic range of 60 dB with a time constant of ~ 10 mus.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here
Accelerating Research

Address

John Eccles House
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom