I. I. Kuritsyn, V. I. Mandrosov, A. P. Shkurinov, M. M. Nazarov, O. P. Cherkasova, “Application of THz probe radiation in low-coherent tomographs based on spatially separated counterpropagating beams”, Kvantovaya Elektronika, 2013, Volume 43, Number 10,Pages <nobr>958

This article is cited in 1 paper

Terahertz radiation

Application of THz probe radiation in low-coherent tomographs based on spatially separated counterpropagating beams

I. I. Kuritsyn^a, V. I. Mandrosov^b, A. P. Shkurinov^a, M. M. Nazarov^a, O. P. Cherkasova^c

^a Lomonosov Moscow State University, Faculty of Physics
^b Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow region
^c Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk

Abstract: A principle of designing a high-resolution low-coherent THz tomograph, which makes it possible to investigate media with a high spatial resolution (in the range λ₀ – 2λ₀, where λ₀ is the average probe wavelength) is considered. The operation principle of this tomograph implies probing a medium by radiation with a coherence length of 8λ₀ and recording a hologram of a focused image of a fixed layer of this medium using spatially separated counterpropagating object and reference beams. Tomograms of the medium studied are calculated using a temporal approach based on application of the time correlation function of probe radiation.

Keywords: THz radiation, coherence, holography, tomography.

PACS: 42.30.Wb, 42.40.Kw, 42.25.Kb

Received: 14.09.2012
Revised: 02.04.2013