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Efficient generation and electro-optic sampling detection of THz radiation using Cherenkov phase matching scheme

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9 Author(s)
Horita, K. ; Res. Center for Dev. of Far-Infrared Region, Univ. of Fukui, Fukui, Japan ; Kinoshita, T. ; Que, C.T. ; Estacio, E.
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An efficient terahertz (THz) wave generation via Cherenkov-type phase matching has been demonstrated using a thin lithium niobate (LiNbO3, LN) crystal coupled to a Si prism structure (Si-LN). This design relies on wave-guiding effects for the optical pump and decreased THz absorption in the LN crystal to achieve intense THz wave emission. In addition, an efficient THz electro-optic (EO) sampling has been demonstrated using the same Si-LN structure and Cherenkov phase matching scheme. The Cherenkov phase matching has an advantage over the collinear phase matching since it can be achieved with any pump or probe wavelength.

Published in:

Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on

Date of Conference:

2-7 Oct. 2011