Open AccessStand-alone system for high-resolution, real-time terahertz imaging
Author(s) -
Maria I. Amanti,
Giacomo Scalari,
Mattias Beck,
Jérôme Faist
Publication year - 2012
Publication title -
optics express
Language(s) - Danish
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.002772
Subject(s) - terahertz radiation , optics , laser , resolution (logic) , wavelength , quantum cascade laser , image resolution , cascade , materials science , physics , optoelectronics , computer science , chemistry , chromatography , artificial intelligence
In this work we present a stand-alone, portable system for high resolution real-time THz imaging. The total weight of the apparatus is less than 15 kg and its physical dimension is of ~(65 cm)3. A quantum cascade laser emitting at 3.4 THz laser based on a third-order distributed feedback cavity is used as source. It operates in continuous-wave at 50 K with more than 1 mW output power and less than 300 mW of power consumption. High resolution real-time THz imaging is reported: resolution of 2.5 times the wavelength is demonstrated.