Projects per year
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.
| Original language | English |
|---|---|
| Article number | 015001 |
| Journal | Physical Review Letters |
| Volume | 134 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 3 Jan 2025 |
Funding
This research work was supported by the National Research Foundation (NRF) of Korea (Grants No. NRF-2022R1I1A1A01055853, No. RS-2024-00342356, No. RS-2022-00154676, No. NRF-2020R1A2C1102236, No. NRF-2022R1A2C3013359, No. NRF-2022R1A2C2009768, and No. NRF-2019R1C1C1003687). M.S.H acknowledges the HRD Program for Industrial Innovation funded by KIAT MOTIE (Grant No. P0023703). D.A.J. acknowledges support from the UK EPSRC (Grant No. EP/N028694/1) and received funding from the European Union's Horizon 2020 research and innovation programme under Grant Agreement No. 871124 Laserlab-Europe. This research work was supported by the National Research Foundation (NRF) of Korea (Grants No. NRF-2022R1I1A1A01055853, No. RS-2024-00342356, No. RS-2022-00154676, No. NRF-2020R1A2C1102236, No. NRF-2022R1A2C3013359, No. NRF-2022R1A2C2009768, and No. NRF-2019R1C1C1003687). M.\u2009S.\u2009H acknowledges the HRD Program for Industrial Innovation funded by KIAT MOTIE (Grant No. P0023703). D.\u2009A.\u2009J. acknowledges support from the UK EPSRC (Grant No. EP/N028694/1) and received funding from the European Union\u2019s Horizon 2020 research and innovation programme under Grant Agreement No. 871124 Laserlab-Europe.
Keywords
- laser-plasma interactions
- terahertz generation in plasmas
- laboratory plasma
- particle-in-cell methods
Fingerprint
Dive into the research topics of 'Narrowband terahertz emission from a plasma oscillator imbedded in a plasma density gradient'. Together they form a unique fingerprint.Projects
- 1 Finished
-
Lab in a bubble
Jaroszynski, D. (Principal Investigator), Boyd, M. (Co-investigator), Brunetti, E. (Co-investigator), Ersfeld, B. (Co-investigator), Hidding, B. (Co-investigator), McKenna, P. (Co-investigator), Noble, A. (Co-investigator), Sheng, Z.-M. (Co-investigator), Vieux, G. (Co-investigator), Welsh, G. H. (Co-investigator) & Wiggins, M. (Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/04/16 → 31/03/21
Project: Research