Title :
Highly sensitive terahertz-wave detection by using nonlinear parametric conversion
Author :
Hayashi, Shin´ichiro ; Nawata, Koji ; Kawase, Kanta ; Minamide, Hiroaki
Author_Institution :
RIKEN ASI, Sendai, Japan
Abstract :
We report on a highly sensitive detection of sub-nanosecond terahertz-waves with wide dynamic range using frequency up-conversion in a nonlinear MgO:LiNbO3 crystal at room temperature. The generation of the detection signal is based on optical parametric mixing between an input terahertz-waveWe report on a highly sensitive detection of sub-nanosecond terahertz-waves with wide dynamic range using frequency up-conversion in a nonlinear MgO:LiNbO3 crystal at room temperature. The generation of the detection signal is based on optical parametric mixing between an input terahertz-wave radiation and an intense near-IR pumping beam. We obtained the dynamic range of more than 100 dB. radiation and an intense near-IR pumping beam. We obtained the dynamic range of more than 100 dB.
Keywords :
infrared spectra; lithium compounds; magnesium compounds; multiwave mixing; niobium compounds; optical frequency conversion; optical parametric amplifiers; optical pumping; photodetectors; terahertz waves; LiNbO3:MgO; frequency up-conversion; highly sensitive subnanosecond terahertz-wave detection; intense near-infrared pumping beam; nonlinear magnesium oxide-lithium niobate crystal; nonlinear parametric conversion; optical parametric mixing; room temperature; temperature 293 K to 298 K; terahertz-wave radiation; Crystals; Detectors; Dynamic range; Laser excitation; Optical frequency conversion; Temperature sensors;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
