Catching a Terahertz Pulse in a Photonic Crystal Net Triggers Dynamic Frequency Conversion

International Conference on Infrared, Millimeter, and Terahertz Waves（2023）

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摘要

We experimentally demonstrate dynamic frequency conversion of a terahertz (THz) pulse in a waveguide. The mechanism imposes the photonic band structure of a two-dimensional metallic triangular lattice on a THz pulse as it propagates through a silicon-filled parallel plate waveguide (PPWG). By opening up a photonic band gap on an ultrafast time scale, THz photons within the gap are upconverted to higher frequency propagating states.

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关键词

higher frequency propagating states,photonic band gap,photonic band structure,photonic crystal net triggers dynamic frequency conversion,silicon-filled parallel plate waveguide,terahertz pulse,THz pulse,two-dimensional metallic triangular lattice

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