Generation of radially polarized terahertz pulses via velocity-mismatched optical rectification |
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| Authors: | Chang Guoqing Divin Charles J Liu Chi-Hung Williamson Steven L Galvanauskas Almantas Norris Theodore B |
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| Institution: | FOCUS Center and Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI 48109-2099, USA. gouqingc@engin.umich.edu |
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| Abstract: | We demonstrate the generation of radially polarized terahertz pulses via optical rectification in a Cherenkov geometry exploiting velocity mismatch, contrary to the traditional approach for generating linearly polarized terahertz beams. A compact system is implemented using 001-cut ZnTe pumped by an ultrafast Yb-doped fiber amplifier. |
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