Raman scattering and terahertz-wave parametric generation with nonlinear optical crystal MgO:LiNbO3

Author

Paek, Mun-Cheol ; Kwak, Min Hwan ; Kim, Sungil ; Ryu, Han Cheol ; Kang, Seung Beom ; Jeong, Se Young ; Choi, Sang Kuk ; Kang, Dae Won ; Kang, Kwang-Yong ; Lee, Seung-Hwan ; Yu, Yun-Sik

Author_Institution

Electron. & Telecommun. Res. Inst., Daejeon, South Korea

fYear

2009

fDate

21-25 Sept. 2009

Firstpage

1

Lastpage

2

Abstract

Polariton dispersion and THz-wave generation in MgO:LiNbO₃ single crystal have been investigated by using Raman scattering and THz parametric generation system. The polariton dispersion curve was obtained on the basis of A₁(z) mode of Raman scattering experiment. Wavelengths of the idler beam and the THz-wave were calculated using the phase matching condition with the dispersion curve. We have made a TPG system and directly measured the wavelength of the idler beam. The range of the phase matching angle in the TPG system was 0.35~0.80deg, and the frequency of the THz-wave corresponding to the pump and idler beam was measured to be in the range of 0.95~2.30 THz. They agreed well with those calculated by the polariton dispersion curve.

Keywords

Raman spectra; lithium compounds; magnesium compounds; optical dispersion; optical phase matching; polaritons; submillimetre wave generation; MgO:LiNbO₃; Raman scattering; optical crystal; phase matching; polariton dispersion; terahertz-wave parametric generation; Laser beams; Laser excitation; Nonlinear optics; Optical frequency conversion; Optical pumping; Optical scattering; Particle scattering; Power generation; Raman scattering; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on

Conference_Location

Busan

Print_ISBN

978-1-4244-5416-7

Electronic_ISBN

978-1-4244-5417-4

Type

conf

DOI

10.1109/ICIMW.2009.5324681

Filename

5324681