학술논문
Laser intensity scaling of the magnetic field from a laser-driven coil target.
Document Type
Article
Author
Source
Subject
*MAGNETIC flux density
*ELECTROMAGNETS
*PLASMA temperature
*LASERS
*ELECTRON temperature
*SUPERCONDUCTING magnets
*PLASMA devices
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Language
ISSN
0021-8979
Abstract
We report on the first direct voltage and current measurements from a laser-generated magnetic field coil target. The magnetic field was observed to scale with the laser intensity as B ∝ I laser 0.66 ± 0.13 . This scaling relation can be derived from the measured voltage approximated by the laser-heated plasma electron temperature T e. The experiments used a 1053 nm laser with pulse lengths ranging from 0.5 to 20 ns and intensities ranging from 10 9 to 10 14 W / cm 2 to generate an electric potential that drives current through the coil. We show that the behavior of the coil can be described with a lumped-element circuit model. [ABSTRACT FROM AUTHOR]