Back to Search
Start Over
Spatio-temporal coupling controlled laser for electron acceleration.
- Source :
-
Communications Physics . 7/5/2022, Vol. 5 Issue 1, p1-6. 6p. - Publication Year :
- 2022
-
Abstract
- Limited by the difficulty in acceleration synchronization, it has been a long-term challenge for on-chip dielectric laser-based accelerators to bridge the gap between non-relativistic and relativistic regimes. Here, we propose a laser-based accelerators based on a spatio-temporal coupling controlled laser pulse, which enables the acceleration of a non-relativistic electron to a sub-MeV level in a single acceleration structure (chirped spatial grating). It provides high precision temporal and spatial tuning of the driving laser via dispersion manipulation, leading to a synchronous acceleration of the velocity increasing electrons over a large energy range. Additionally, the spatio-temporal coupling scheme is a general method and can be extended to driving fields of other wavelengths such as terahertz pulses. Our results bring possibilities to MeV-scale portable electron sources and table-top acceleration experiments. A long-standing challenge for on-chip dielectric laser-based accelerators is to bridge the gap between nonrelativistic and relativistic regimes. Here, an all-optical acceleration scheme is proposed that maximises the electron-field interaction length, and hence the acceleration, by spatio-temporal pulse shaping. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ELECTRON sources
*LASERS
*ELECTRONS
*COUPLING schemes
*FEMTOSECOND pulses
Subjects
Details
- Language :
- English
- ISSN :
- 23993650
- Volume :
- 5
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Communications Physics
- Publication Type :
- Academic Journal
- Accession number :
- 157817863
- Full Text :
- https://doi.org/10.1038/s42005-022-00954-8