Cherenkov phase-matched monochromatic THzwave generation using difference frequency generation with a lithium niobate crystal.
We demonstrated a Cherenkov phase-matching method for monochromatic THz-wave generation using the difference frequency generation process with a lithium niobate crystal, which resulted in high conversion efficiency and wide tunability. We successfully generated monochromatic THz waves across the range 0.2-3.0 THz. We obtained efficient energy conversion in the low frequency region below 0.5 THz, and achieved a flat tuning spectrum by varying the pumping wavelength during THz-wave tuning.
Department of Electrical Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan. suizu@nuee.nagoya-u.ac.jp
Koji
K
Suizu
Takayuki
T
Shibuya
Takuya
T
Akiba
Toshihiro
T
Tutui
Chiko
C
Otani
Kodo
K
Kawase
D003460:Crystallization; D004867:Equipment Design; D009556:Niobium / Q000737:chemistry*; D055095:Optics and Photonics; D010087:Oxides / Q000737:chemistry*; D012031:Refractometry / Q000295:instrumentation / Q000379:methods; D012825:Silicon; D014159:Transducers
D010087:Oxides; D009556:Niobium; C091692:lithium niobate; D012825:Silicon