title: Efficient electro-optic sampling detection of terahertz radiation via Cherenkov phase matching.
abstract: We experimentally demonstrate an efficient electro-optic sampling scheme based on Cherenkov phase matching of broadband terahertz radiation with 800-nm femtosecond probe beam in a 0.5 mm-thick LiNbO3 crystal coupled to a Si prism. The electro-optic signal from a Cherenkov-phase-matched LiNbO3 crystal is found to be comparable to that with a 4 mm-thick ZnTe crystal using a collinear phase matching. The Cherenkov phase matching technique can be achieved with any probe wavelength and hence has an advantage over the collinear phase matching method.
authors: Research Center for Development of Far-Infrared Region, University of Fukui, Fukui 910-8507, Japan.
authors: Masahiko
authors: M
authors: Tani
authors: Kazuki
authors: K
authors: Horita
authors: Tetsuya
authors: T
authors: Kinoshita
authors: Christopher T
authors: CT
authors: Que
authors: Elmer
authors: E
authors: Estacio
authors: Kohji
authors: K
authors: Yamamoto
authors: Michael I
authors: MI
authors: Bakunov
mesh_terms: D000042:Absorption; D003460:Crystallization; D004867:Equipment Design; D005583:Fourier Analysis; D007834:Lasers; D055095:Optics and Photonics / Q000379:methods; D012825:Silicon / Q000737:chemistry*; D013055:Spectrophotometry, Infrared / Q000379:methods; D055053:Terahertz Radiation; D055068:Terahertz Spectroscopy / Q000379:methods*; D013997:Time Factors
chemical_list: D012825:Silicon