Abstract
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.
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Acknowledgment
The authors gratefully acknowledge the funding support by the Russian Foundation for Basic Research through grants 09-02-12158 and 09-02-12121, by the Siberian Branch of Russian Academy of Science through integration grant #89-2009, and by the RF State Contract #02.740.11.0556. The authors are indebted to G. N. Kulipanov, N. A. Vinokurov and A. L. Aseev for the support of this work, to Dr. Sugil Lee from Vieworks Co, Ltd. for the fabrication of the masks used in these experiments and to Ya. V. Getmanov, V. V. Kubarev, M. A. Scheglov, O. A. Shevchenko, T. V. Salikova, and other team members who supported the operation of the Novosibirsk free electron laser facility.
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Knyazev, B.A., Cherkassky, V.S., Choporova, Y.Y. et al. Real-Time Imaging Using a High-Power Monochromatic Terahertz Source: Comparative Description of Imaging Techniques with Examples of Application. J Infrared Milli Terahz Waves 32, 1207–1222 (2011). https://doi.org/10.1007/s10762-011-9773-x
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DOI: https://doi.org/10.1007/s10762-011-9773-x