Abstract
The temporal evolution of residual charges during laser ablation of metal and dielectric materials was investigated by measuring the correlated transient electric field using femtosecond electron shadow imaging and deflectometry. The results indicate that residual charges in metals can redistribute themselves almost instantly, abiding by the boundary conditions and Maxwell equations in the same way as they would at electrostatic equilibrium condition, but residual charges in dielectrics are confined within the excited area for hundreds of picoseconds and beyond. These observations provide an experimental support to the alleged Coulomb explosion phenomenon in previous studies as well as a reference for modeling residual charge dynamics.
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Dates
Type | When |
---|---|
Created | 14 years, 7 months ago (Jan. 6, 2011, 6:27 p.m.) |
Deposited | 2 years, 2 months ago (June 24, 2023, 11:04 p.m.) |
Indexed | 1 month ago (July 30, 2025, 6:55 a.m.) |
Issued | 14 years, 8 months ago (Jan. 3, 2011) |
Published | 14 years, 8 months ago (Jan. 3, 2011) |
Published Online | 14 years, 8 months ago (Jan. 6, 2011) |
Published Print | 14 years, 8 months ago (Jan. 3, 2011) |
Funders
1
National Science Foundation
10.13039/100000001
Region: Americas
gov (National government)
Labels
4
- U.S. National Science Foundation
- NSF
- US NSF
- USA NSF
Awards
1
- DMR-0907262
@article{Li_2011, title={Real-time probing of ultrafast residual charge dynamics}, volume={98}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.3533811}, DOI={10.1063/1.3533811}, number={1}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Li, Junjie and Wang, Xuan and Chen, Zhaoyang and Zhou, Jun and Mao, Samuel S. and Cao, Jianming}, year={2011}, month=jan }