Generation of picosecond hard x rays by tera watt laser focusing on a copper target
- 26 October 1998
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 73 (17), 2393-2395
- https://doi.org/10.1063/1.122444
Abstract
Hard x-ray generation from tera-watt laser irradiation (4 TW, 42 fs at 780 nm) on a solid copper target has been studied in a range of the laser-power density between 3×1016 and 2×1017 W/cm2. Short-pulsed x rays are generated within 6.4 ps and include Cu Kα and Kβ line emissions and a continuum between 3 and 6 keV. The maximum intensity of Cu Kα radiation has been estimated to be 6.5×1010 photons (4π sr pulse)−1. The mechanism of hard x-ray generation has been discussed.This publication has 9 references indexed in Scilit:
- Picosecond-milliangstrom resolution dynamics by ultrafast x-ray diffractionPublished by SPIE-Intl Soc Optical Eng ,1997
- New Technique of the X-Ray Efficiency Measurement of a Charge-Coupled Device with a Subpixel ResolutionJapanese Journal of Applied Physics, 1997
- Hard-x-ray radiation from short-pulse laser-produced plasmasApplied Physics Letters, 1996
- Ultrashort X-ray pulsesApplied Physics B Laser and Optics, 1994
- Strong Kα emission in picosecond laser-plasma interactionsJournal of Applied Physics, 1993
- Hot-electron characterization fromKα measurements in high-contrast,p-polarized, picosecond laser-plasma interactionsPhysical Review Letters, 1993
- High-Resolution X-Ray Spectroscopy of a 80 fs Laser-Produced Al PlasmaEurophysics Letters, 1992
- MeV x-ray generation with a femtosecond laserPhysical Review Letters, 1992
- Ultrafast laser generation of hard X-raysIEEE Journal of Quantum Electronics, 1992