Title :
A Study on Manipulation of Terahertz Waveforms Based on Difference Frequency Generation
Author :
Ma, Jian-jun ; Li, De-hua ; Zhou, Wei ; Zhao, Xiang-dong
Author_Institution :
Qingdao key Lab. for Terahertz Sci. & Technol., Shandong Univ. of Sci. & Technol., Qingdao, China
Abstract :
Theoretical analyses and simulations of terahertz generation based on difference frequency generation in nonlinear crystal ZnTe are presented in this paper. Owing to the phase mismatching and crystal absorption, the crystal length has great influence on the spectral width and determines the central frequency of the terahertz radiation. The dependence of the temporal and spectral waveforms on the pump pulsewidth is also studied in this paper.
Keywords :
II-VI semiconductors; nonlinear media; optical frequency conversion; optical materials; optical phase matching; terahertz waves; zinc compounds; ZnTe; crystal absorption; crystal length; difference frequency generation; nonlinear crystal; phase mismatching; pump pulsewidth; spectral waveforms; spectral width; temporal waveforms; terahertz waveforms; Crystals; Frequency conversion; Nonlinear optics; Optical polarization; Optical pulses; Optical pumping; Ultrafast optics;
Conference_Titel :
Photonics and Optoelectronics (SOPO), 2011 Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6555-2
DOI :
10.1109/SOPO.2011.5780656
