Title :
Widely Tunable Terahertz-Wave Generation from Collinear Phase-matched GaSe
Author :
Zhang, Dong-wen ; Yuan, Jian-min
Author_Institution :
Nat. Univ. of Defense Technol., Changsha
Abstract :
Terahertz (THz) wave generation based on the difference-frequency mixing in the GaSe crystal was investigated theoretically and experimentally. An orthogonally polarized dual-wavelength optical parametric oscillator (OPO) with two KTiOPO4 crystals was used as the pump lights. Widely tunable terahertz waves were generated using the collinear phased-matched configuration. The spectral distribution of terahertz-wave intensity revealed the effect of imperfections in the crystal.
Keywords :
crystal orientation; gallium compounds; optical frequency conversion; optical parametric oscillators; optical phase matching; potassium compounds; submillimetre wave generation; GaSe; GaSe crystal; KTiOPO4; collinear phased-matched configuration; crystal imperfections; difference-frequency mixing; orthogonally polarized dual-wavelength optical parametric oscillator; spectral distribution; submillimetre waves; terahertz wave generation; Frequency conversion; Gas lasers; Gases; Mirrors; Nonlinear optics; Optical filters; Optical pulses; Optical pumping; Pump lasers; Tunable circuits and devices;
Conference_Titel :
Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0400-2
Electronic_ISBN :
1-4244-0400-2
DOI :
10.1109/ICIMW.2006.368320
