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Abstract

In this paper, the tuning of walk-off length and the optimal period of periodical-inverted GaAs crystal in narrow-band terahertz-wave generation by difference frequency mixing was numerical simulated and analyzed in the condition of different wavelengths and durations of pump pulse.The influence of the number of domains of periodically-inverted GaAs crystal on the THz-wave spectrum was also studied.The temperature tuning properties in periodical-inverted GaAs crystal were calculated and analyzed with the temperature dependent Sellmeier function of GaAs crystal; the influence of temperature tuning on the THz-wave spectrum was also studied.The simulation showed a new way to generate the wide-tunable narrow-band THz wave with temperature tuning.These theoretical calculations served for the subsequent experiment as theoretical basis and reference.

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[3]	Ma Jin-Dong, Wu Hao-Yu, Lu Qiao, Ma Ting, Shi Lei, Sun Qing, Mao Qing-He.Fiber-type difference frequency generation infrared optical frequency comb based on the femtosecond pulses generated by a mode-locked fiber laser. Acta Physica Sinica, 2018, 67(9): 094207.doi:10.7498/aps.67.20172503
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[5]	Chai Lu, Niu Yue, Li Yan-Feng, Hu Ming-Lie, Wang Qing-Yue.Recent progress of tunable terahertz sources based on difference frequency generation. Acta Physica Sinica, 2016, 65(7): 070702.doi:10.7498/aps.65.070702
[6]	Liu Feng, Li Yi, Shi Jun-Kai, Hu Xiao-Kun, Li Jiang, Li Yan-Feng, Xing Qi-Rong, Hu Ming-Lie, Chai Lu, Wang Qing-Yue.Frequency tunable terahertz pulses generated from GaP waveguide emitter. Acta Physica Sinica, 2012, 61(3): 034210.doi:10.7498/aps.61.034210
[7]	Du Hai-Wei, Chen Min, Zhang Kai-Yun, Sheng Zheng-Ming, Zhang Jie.Ionization currents and terahertz emission from the interaction of few-cycle laser pulses with gas targets. Acta Physica Sinica, 2012, 61(17): 174205.doi:10.7498/aps.61.174205
[8]	Dou Jun-Hong, Sheng Yan, Zhang Dao-Zhong.Temperature and wavelength tuning of second harmonic generation in a nonlinear photonic quasi-crystal. Acta Physica Sinica, 2009, 58(7): 4685-4688.doi:10.7498/aps.58.4685
[9]	Liu Huan, Xu De-Gang, Yao Jian-Quan.Theoretical study of tunable terahertz radiation based on difference-frequency generation in GaSe and ZnGeP2 crystals. Acta Physica Sinica, 2008, 57(9): 5662-5669.doi:10.7498/aps.57.5662
[10]	Hou Mi-Na, Liu Hong-Jun, Zhao Wei, Wang Yi-Shan.Tunable parametric fluorescence using a single crystal. Acta Physica Sinica, 2007, 56(10): 5872-5877.doi:10.7498/aps.56.5872
[11]	Han Hai_Nian, Zhao Yan_Ying, Zhang Wei, Zhu Jiang_Feng, Wang Peng, Wei Zhi_Yi, Li Shi_Qun.Measurement of carrier-envelope phase of few cycles Ti:sapphire laser by difference frequency technique. Acta Physica Sinica, 2007, 56(5): 2756-2759.doi:10.7498/aps.56.2756
[12]	Sun Bo, Yao Jian-Quan, Wang Zhuo, Wang Peng.Study of tunable terahertz-wave generation via difference frequency mixing in isotropic semiconductor crystals. Acta Physica Sinica, 2007, 56(3): 1390-1396.doi:10.7498/aps.56.1390
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[14]	Han Qun, Lü Ke－Cheng, Li Jia－Fang, Li Yi－Gang, Chen Sheng－Ping.Research on a novel fiber Bragg grating thermal tuning scheme*. Acta Physica Sinica, 2004, 53(12): 4253-4256.doi:10.7498/aps.53.4253
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[16]	WANG PENG-QIAN, TIAN CE-CHAN, SUN TAO-HENG.THE GENERATION OF TUNABLE VUV COHERENT RADIATION BY FOUR-WAVE SUM-MIXING BELOW THE FIRST RESONANCE LEVEL OF Ne. Acta Physica Sinica, 1997, 46(2): 300-305.doi:10.7498/aps.46.300
[17]	SHE WEI-LONG, YU ZHEN-XIN, LEE WING KEE.SELF-PUMPED PHASE CONJUGATION OF IMPERFECTLY MODE-LOCKED PICOSECOND LASER PULSES INDUCED BY A PHOTOREFRACTIVE WAVEGUIDE. Acta Physica Sinica, 1996, 45(12): 2010-2015.doi:10.7498/aps.45.2010
[18]	SHE WEI-LONG, LI QING-XING, YU ZHEN-XIN, GAO ZHAO-LAN, MO DANG, ZHU DE-RUI.DIRECT OBSERVATION AND RECORDING OF TWO-WAVE MIXING OF ps LIGHT PULSES IN Ce:KNSBN CRYSTAL. Acta Physica Sinica, 1993, 42(10): 1608-1611.doi:10.7498/aps.42.1608
[19]	ZHANG YU-KE, ZHU BAO-QIANG, ZOU YING-HUA.GENERATION OF TUNABLE VUV LASER NEAR 125nm BY FOUR WAVE SUM MIXING IN Hg VAPOR. Acta Physica Sinica, 1991, 40(9): 1448-1455.doi:10.7498/aps.40.1448
[20]	HUANG XIAN-LING, XIA ZONG-JU, ZOU YING-HUA.TUNABLE VACUUM-ULTRA VIOLET RADIATION GENERATED BY TWO-PHTON RESONANTFOUR-WAVE DIFFERENCE MIXING IN Hg VAPOR. Acta Physica Sinica, 1990, 39(9): 1385-1392.doi:10.7498/aps.39.1385

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Vol. 59, Issue 5 - 2010-03-05

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