THz radiation from a DARC source via a laser-produced relativistic ionization front

Nobuo Ohata; Kenta Yaegashi; Kun Li; Takeshi Higashiguchi; Noboru Yugami

doi:10.1117/12.756796

26 September 2007 THz radiation from a DARC source via a laser-produced relativistic ionization front

Nobuo Ohata, Kenta Yaegashi, Kun Li, Takeshi Higashiguchi, Noboru Yugami

Proceedings Volume 6772, Terahertz Physics, Devices, and Systems II; 67720V (2007) https://doi.org/10.1117/12.756796
Event: Optics East, 2007, Boston, MA, United States

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.

Citation Download Citation

Nobuo Ohata, Kenta Yaegashi, Kun Li, Takeshi Higashiguchi, and Noboru Yugami "THz radiation from a DARC source via a laser-produced relativistic ionization front", Proc. SPIE 6772, Terahertz Physics, Devices, and Systems II, 67720V (26 September 2007); https://doi.org/10.1117/12.756796

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