Mondal, S., Lad, Amit D., Ahmed, Saima et al. (5 more authors) (2010) Doppler Spectrometry for Ultrafast Temporal Mapping of Density Dynamics in Laser-Induced Plasmas. Physical Review Letters. 105002. pp. 1-4. ISSN 1079-7114
Abstract
We present high resolution measurements of the ultrafast temporal dynamics of the critical surface in moderately overdense, hot plasma by using two-color, pump-probe Doppler spectrometry. Our measurements clearly capture the initial inward motion of the plasma inside the critical surface of the pump laser which is followed by outward expansion. The measured instantaneous velocity and acceleration profiles are very well reproduced by a hybrid simulation that uses a 1D electromagnetic particle-in-cell simulation for the initial evolution and a hydrodynamics simulation for the later times. The combination of high temporal resolution and dynamic range in our measurements clearly provides quantitative unraveling of the dynamics in this important region, enabling this as a powerful technique to obtain ultrafast snapshots of plasma density and temperature profiles for providing benchmarks for simulations.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Keywords: | ULTRASHORT-PULSE,ACCELERATION,SHIFT |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 07 Jun 2012 17:26 |
Last Modified: | 21 Jan 2025 17:16 |
Published Version: | https://doi.org/10.1103/PhysRevLett.105.105002 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevLett.105.105002 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:65647 |