Abstract
Electromagnetic bursts of substantial energy on a nuclear time scale of [zeptosecond (zs) to sub-zs] can theoretically be generated by a perawatt or multiterawatt laser beam focused on a subwavelength-size solid particle or thin wire. Terawatt laser in a similar setup could be instrumental in reaching the subattosecond domain. The system may also generate a half-cycle pulse magnetic field on astrophysical scale up to .
- Received 16 May 2001
DOI:https://doi.org/10.1103/PhysRevLett.88.074801
©2002 American Physical Society