| Autor: |
Lauren Gingras, Kartiek Agarwal, Jean-Michel Ménard, Simon Bernier, Aidan W. Schiff-Kearn, David G. Cooke, Nima Chamanara |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). |
| DOI: |
10.1109/irmmw-thz46771.2020.9370529 |
| Popis: |
We demonstrate experimentally a strategy for using relativistic moving dielectric fronts to trigger and affect the generation of coherent terahertz (THz) pulses. Our emission mechanism draws energy from the photoexcitation of built-in static Schottky fields present at metal-semiconductor boundaries in a silicon-filled parallel plate waveguide (PPWG). Fronts tuned to sub-luminal velocity produce THz pulses whose electric field temporal profile displays a stretched plateau of quasi-dc character. Super-luminal fronts, on the other hand, provide access to front-induced interactions giving a clear signature of pulse time-reversal. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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