Real-Time Imaging Using a High-Power Monochromatic Terahertz Source: Comparative Description of Imaging Techniques with Examples of Application

Research paper by Boris A. Knyazev, Valery S. Cherkassky, Yulia Yu. Choporova, Vasily V. Gerasimov, Maxim G. Vlasenko, Mikhail A. Dem’yanenko, Dmitry G. Esaev

Indexed on: 05 Mar '11Published on: 05 Mar '11Published in: Journal of Infrared, Millimeter, and Terahertz Waves


Gradually appearing high-power terahertz sources require the development of adequate imaging techniques. This paper describes four imaging techniques (with a thermal recorder, temperature-sensitive phosphor plates, a visible-light thermal sensitive Fizeau interferometer, and an uncooled microbolometer array) applied with the Novosibirsk terahertz free electron laser as a radiation source. The space and time resolutions of the devices were examined thoroughly. Examples of the application of these techniques, including in-line holography and real-time moving-objects detection, are given.