Characteristics of THz-wave radiation using a monolithic grating coupler on a LiNbO3 crystal
Characteristics of THz-wave radiation using a monolithic grating coupler on a LiNbO3 crystal
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LiNbO3 晶体上使用单片光栅耦合器的太赫兹波辐射特性
DOI：
10.1007/bf02069458
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
Hiromasa Ito
中科院分区：
文献类型：
--
作者：
K. Kawase;M. Sato;T. Taniuchi;Hiromasa Ito
利用在LiNbO3晶体表面制作的光栅耦合器，在调Q Nd：YAG激光器泵浦下，实现了宽调谐太赫兹（THz）波的产生。在本文中，我们报告的振荡和辐射，包括可调谐性，空间和时间的相干性，方向性和效率的详细特性。还进行了使用LiTaO3晶体的振荡，其中实验相位匹配条件值与计算值吻合良好。
Wide tunable terahertz (THz) wave generation was successfully demonstrated utilizing a grating coupler fabricated on the surface of a LiNbO3 crystal which was pumped by a Q-switched Nd: YAG laser. In this paper, we report the detailed characteristics of the oscillation and the radiation including tunability, spatial and temporal coherency, directivity, and efficiency. Oscillation using a LiTaO3 crystal was also performed, in which experimental phasematching condition values agreed well with the calculated one.