GIST Scholar
College of Natural Sciences
Department of Physics and Photon Science
1. Journal Articles
Narrowband Terahertz Emission from a Plasma Oscillator Imbedded in a Plasma Density Gradient
- Type
- Article
- Citation
- Physical Review Letters, v.134, no.1
- Issued Date
- 2025-01
- Abstract
- A novel method is presented for generating radiation using the beat wave of a bifrequency laser pulse to excite plasma oscillations in a plasma slab that has a density gradient. The plasma wave is localized where it is excited resonantly and becomes a plasma oscillator that produces a beam of radially polarized, terahertz radiation. Particle-in-cell simulations and a theoretical analysis are used to demonstrate its main characteristics, such as its narrow bandwidth. The radiator should have useful applications including driving terahertz-band particle accelerators and for pump-probe experiments. © 2025 American Physical Society.
- Publisher
- American Physical Society
- ISSN
- 0031-9007
- Appears in Collections:
- Department of Physics and Photon Science > 1. Journal Articles
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