A traveling-wave THz photomixer based on angle-tuned phase matching
作者： Shuji Matsuura , Geoffrey A. Blake , Rolf A. Wyss , J. C. Pearson , Christoph Kadow
DOI: 10.1063/1.124042
关键词: Optoelectronics 、 Laser beams 、 Bandwidth (signal processing) 、 Physics 、 Traveling wave 、 Optics 、 Stripline 、 Interference (wave propagation) 、 Thz waves 、 Terahertz radiation 、 Phase matching
摘要: A traveling-wave THz photomixer based on a free-space optical-THz phase-matching scheme is proposed. dc-biased coplanar strip line fabricated low-temperature-grown GaAs serves as the active area of device, and illuminated by two noncollinear laser beams which generate interference fringes that are accompanied waves. The device with laser-power-handling capability over 300 mW 3-dB bandwidth 1.8 was experimentally demonstrated. results show photomixers have potential to surpass small-area designs.
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