Modeling of terahertz pulse generation from LT-GaAs ultrafast photoconductive switches |
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| Authors: | Zhe Ma Hongmei Ma Chuntao Yang Keming Feng |
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| Institution: | 1. Beijing Institute of Radio Mctrology and Measurement, Beijing 100854, P. R. China;Beijing Institute of Electronic System Engineering, Beijing 100854, P. R. China
2. Beijing Institute of Radio Mctrology and Measurement, Beijing 100854, P. R. China |
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| Abstract: | The technique of terahertz pulses generated from the photoconductive switches has been applied in the ultrafast electrical pulse metrology recently.A lumped-element theoretical model is established to describe the performance of the LT-GaAs ultrafast photoconductive switch used in the ultrafast pulse standard.The carrier transport processes of the photoexcited semiconductor,the attenuation and dispersion during terahertz pulse propagating are considered in the theoretical model.According to the experimental... |
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| Keywords: | terahertz pulse photoconductive switch coplanar waveguide LT-GaAs |
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