Coherent tunable THz-wave generation from LiNbO3 optical parametric oscillator using a monolithick grating coupler

Kodo Kawase

doi:10.1117/12.2316066

1 September 1996 Coherent tunable THz-wave generation from LiNbO₃ optical parametric oscillator using a monolithick grating coupler

Kodo Kawase

Author Affiliations +

Proceedings Volume 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology; 2778AH (1996) https://doi.org/10.1117/12.2316066
Event: 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 1996, Taejon, Korea, Republic of

Abstract

A couple of decades ago, the efficient and wide tunable THz wave generation had been reported by a group of Stanford Univ.^1-3 based on both parametric and Raman effects. Although the interaction was highly efficient, most of the generated THz wave was absorbed or totally reflected inside the crystal due to a large absorption coefficient, as well as large refractive index (≈5.2 at THz range). They used a crystal one of whose corner was cut and polished at the proper angle to allow the signal radiation to emerge approximately normal to the exit surface.

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Kodo Kawase "Coherent tunable THz-wave generation from LiNbO₃ optical parametric oscillator using a monolithick grating coupler", Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 2778AH (1 September 1996); https://doi.org/10.1117/12.2316066

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