A traveling-wave THz photomixer based on angle-tuned phase matching
A traveling-wave THz photomixer based on angle-tuned phase matching
复制标题
基于角度调谐相位匹配的行波太赫兹光电混频器
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
A. Gossard
中科院分区：
文献类型：
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作者：
S. Matsuura;G. Blake;R. Wyss;J. Pearson;C. Kadow;A. Jackson;A. Gossard
提出了一种基于自由空间光学太赫兹相位匹配的行波太赫兹光混频器。一个直流偏置的共面带状线制作在低温生长的GaAs作为器件的有源区，并由两个非共线的激光束，产生的干涉条纹，伴随着太赫兹波照射。实验表明，该器件的激光功率处理能力超过300 mW，3 dB带宽为1.8 THz。结果表明，行波光混频器有潜力超越小面积的设计。
A traveling-wave THz photomixer based on a free-space optical-THz phase-matching scheme is proposed. A dc-biased coplanar strip line fabricated on low-temperature-grown GaAs serves as the active area of the device, and is illuminated by two noncollinear laser beams which generate interference fringes that are accompanied by THz waves. The device with the laser-power-handling capability over 300 mW and a 3-dB bandwidth of 1.8 THz was experimentally demonstrated. The results show that traveling-wave photomixers have the potential to surpass small-area designs.