Title :
Terahertz waveforms manipulation by two orthogonally polarized femtosecond pulses
Author :
Li, Dehua ; Ma, Jianjun ; Zhou, Wei ; Liu, Shenggang
Author_Institution :
Terahertz Sci. & Technol. Res. Center, Shandong Univ. of Sci. & Technol., Qingdao, China
Abstract :
This paper presents a method for terahertz pulse manipulation. A pair of temporally separated and orthogonally polarized pump lasers is coincident on a (110)-oriented ZnTe crystal. The amplitude and polarity of the terahertz pulse generated based on difference frequency mixing can be controlled by adjusting the temporal separation between the incident pulses. Theoretical derivation and simulation are carried out to prove the effectiveness of this method and crystal length dependence of terahertz waveform is discussed.
Keywords :
optical materials; optical pulse shaping; optical pumping; terahertz wave generation; zinc compounds; ZnTe; frequency mixing; orthogonally polarized femtosecond pulses; orthogonally polarized pump laser; temporal separation; terahertz pulse generation; terahertz pulse manipulation; terahertz waveform manipulation; Absorption; Crystals; Laser excitation; Mathematical model; Optical pulses; Optical wavelength conversion; Ultrafast optics;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6104923
