Title :
Study of Laser-induced Damage in the Material of THz Wave Generator
Author :
Xianbin, Zhang ; Wei, Shi ; Chengju, Ma ; Xinwu, Su ; Hua, Li
Author_Institution :
Xi´´an Univ. of Technol., Xi´´an
Abstract :
Pulse laser of 1064 nm damage studies are performed in two kinds of material. One is the MgO:LiNbO3 for using in THz parameter generator system, and another is the Si-GaAs material for using in THz photoconductive antenna. All the experiments were performed in the bulk of material, which irradiated by Nd:YAG Q-switch laser beam with nanosecond pulse. In the case of the LiNbO3, the damage is associated with both the self-focusing inside the material, and the thermal damage on the face. As for the GaAs, the material damage can be divided into two types of the un-reparable and reparable.
Keywords :
III-V semiconductors; Q-switching; gallium arsenide; laser beam effects; lithium compounds; magnesium compounds; neodymium; silicon; submillimetre wave antennas; submillimetre wave generation; yttrium compounds; MgO:LiNbO3; Q-switch laser beam; Si-GaAs; THz photoconductive antenna; THz wave generator; Y3Al5O12:Nd; laser induced damage; pulse laser; self-focusing; Crystalline materials; Gallium arsenide; Laser theory; Nonlinear optics; Optical materials; Optical pulses; Optical pumping; Optical surface waves; Photoconducting materials; Surface emitting lasers;
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.2006.368677
