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Proceedings Paper

THz radiation from a DARC source via a laser-produced relativistic ionization front
Author(s): Nobuo Ohata; Kenta Yaegashi; Kun Li; Takeshi Higashiguchi; Noboru Yugami
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Paper Abstract

We report on the demonstration of a dc to ac radiation converter (DARC) source as a THz emitter. THz radiation is generated through the spatiotemporal change in electron plasma density induced by a relativistic ionization front propagating in a ZnSe crystal. The central emission frequency is 1.2 THz with a bandwidth of 0.7 THz [full width at half-maximum (FWHM)]. The central frequency is attributed to production of the electron plasma density of the order of 1015 cm-3 and is in good agreement with the expected theoretical value.

Paper Details

Date Published: 26 September 2007
PDF: 6 pages
Proc. SPIE 6772, Terahertz Physics, Devices, and Systems II, 67720V (26 September 2007); doi: 10.1117/12.756796
Show Author Affiliations
Nobuo Ohata, Utsunomiya Univ. (Japan)
Kenta Yaegashi, Utsunomiya Univ. (Japan)
Kun Li, Utsunomiya Univ. (Japan)
Takeshi Higashiguchi, Utsunomiya Univ. (Japan)
Noboru Yugami, Utsunomiya Univ. (Japan)


Published in SPIE Proceedings Vol. 6772:
Terahertz Physics, Devices, and Systems II
Mehdi Anwar; Anthony J. DeMaria; Michael S. Shur, Editor(s)

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