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Updated: Jul 16, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Generation of radially polarized terahertz pulses via velocity-mismatched optical rectification
Guoqing Chang1, Charles J Divin, Chi-Hung Liu
1FOCUS Center and Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI 48109-2099, USA. gouqingc@engin.umich.edu
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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