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

Journal Article · Thu Oct 31 00:00:00 EDT 2013 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2013V043N10ABEH014986· OSTI ID:22370651

Kuritsyn, I I; Shkurinov, A P; Nazarov, M M ^[1]; Mandrosov, V I ^[2]; Cherkasova, O P ^[3]

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1. Department of Physics, M.V. Lomonosov Moscow State University (Russian Federation)
2. Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Moscow Region (Russian Federation)
3. Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk (Russian Federation)

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 λ{sub 0} – 2λ{sub 0}, where λ{sub 0} is the average probe wavelength) is considered. The operation principle of this tomograph implies probing a medium by radiation with a coherence length of 8λ{sub 0} 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. (terahertz radiation)

• OSTI ID: 22370651
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 43, Issue 10; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BEAMS
COHERENCE LENGTH
CORRELATION FUNCTIONS
HOLOGRAPHY
LAYERS
SPATIAL RESOLUTION
THZ RANGE
TOMOGRAPHY