Title :
Optically Pumped Terahertz Laser Based on Three-Level Transition in D2O
Author :
Shi, Huafeng ; Jin, Lei ; Lu, Yuanfu ; Gong, Xiaojing ; Zhang, Yandong ; Cui, Han
Abstract :
A terahertz (THz) pulse laser with a wavelength of 385 μm is optically pumped by a transverse excited atmospheric CO2 laser based on three-level transition in D2O vapor. The used CO2 laser wavelength is 9.26 μm with an output peak power density of 3.0 MW/cm2. The 385 μm THz pulse signal was observed at different D2O vapor pressures. The energy of the THz pulse is performed as a function of the D2O vapor pressure, and a maximum THz pulse signal energy is obtained.
Keywords :
Biomedical engineering; Biomedical optical imaging; Content addressable storage; Laser excitation; Laser theory; Laser transitions; Optical pulses; Optical pumping; Pulsed laser deposition; Pump lasers;
Conference_Titel :
Photonics and Optoelectronic (SOPO), 2010 Symposium on
Conference_Location :
Chengdu, China
Print_ISBN :
978-1-4244-4963-7
Electronic_ISBN :
978-1-4244-4964-4
DOI :
10.1109/SOPO.2010.5504170
