The effect of two-photon absorption and optical excitation area on the generation of THz radiation
The effect of two-photon absorption and optical excitation area on the generation of THz radiation
复制标题
双光子吸收和光激发面积对太赫兹辐射产生的影响
DOI：
10.1016/j.optcom.2006.06.051
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发表时间：
2006-11
影响因子：
2.4
通讯作者：
中科院分区：
文献类型：
--
作者：
实验发现，基于光整流的太赫兹辐射通量与Zete发射体中的光激发大小密切相关。从实验和理论两个方面详细研究了影响太赫兹辐射吞吐量的因素。通过考虑光学整流、衍射和双光子吸收效应，建立了描述太赫兹辐射发射场强度的理论模型。在高激励功率下，理论计算结果与实验数据吻合较好。理论和实验结果都表明，这三种效应对太赫兹辐射的影响是权衡的，为了提高基于光整流的太赫兹辐射吞吐量，在给定的泵浦功率下，应选择合适的激发尺寸。
It was found experimentally that the THz radiation throughput based on optical rectification is strongly related to the optical excitation size in a ZeTe emitter. The factors affecting the THz radiation throughput are investigated in detail both experimentally and theoretically. By taking into account optical rectification, diffraction and two-photon absorption effects, a theoretical model is established to describe the emitting field intensity of THz radiation. There is excellent agreement between the theoretical results and the experimental data under high excitation power. Both theoretical and experimental results demonstrate that there is a trade-off between these three effects for THz radiation, and that in order to increase the THz radiation throughput based on optical rectification, one should choose suitable excitation size under a given pump power.
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影响因子：
5
作者：
Q. Xing;Fang-Lin Mao;Liying Lang;Zhuan Wang;Kai Wang;Shuxin Li;L. Chai;Qing-yue Wang
通讯作者：
Q. Xing;Fang-Lin Mao;Liying Lang;Zhuan Wang;Kai Wang;Shuxin Li;L. Chai;Qing-yue Wang
DOI：
10.1364/josab.22.001667
发表时间：
2005-08-01
影响因子：
1.9
作者：
Dakovski, GL;Kubera, B;Shan, J
通讯作者：
Shan, J
DOI：
10.1364/josab.18.000313
发表时间：
2001-03-01
影响因子：
1.9
作者：
Planken, PCM;Nienhuys, HK;Wenckebach, T
通讯作者：
Wenckebach, T
影响因子：
4
作者：
J. Darrow;Xiang Zhang;D. Auston
通讯作者：
J. Darrow;Xiang Zhang;D. Auston
影响因子：
4
作者：
B. L. Yu;F. Zeng;Q. Xing;R. Alfano
通讯作者：
B. L. Yu;F. Zeng;Q. Xing;R. Alfano