Streeter, M. J.V., Dann, S. J.D., Scott, J. D.E. et al. (28 more authors) (2018) Temporal feedback control of high-intensity laser pulses to optimize ultrafast heating of atomic clusters. Applied Physics Letters. 244101. ISSN 0003-6951
Abstract
We describe how active feedback routines can be applied at a limited repetition rate (5 Hz) to optimize high-power (> 10 TW) laser interactions with clustered gases. Optimization of x-ray production from an argon cluster jet, using a genetic algorithm, approximately doubled the measured energy through temporal modification of the 150 mJ driving laser pulse. This approach achieved an increased radiation yield through exploration of a multi-dimensional parameter space, without requiring detailed a priori knowledge of the complex cluster dynamics. The optimized laser pulses exhibited a slow rising edge to the intensity profile, which enhanced the laser energy coupling into the cluster medium, compared to the optimally compressed FWHM pulse (40 fs). Our work suggests that this technique can be more widely utilized for control of intense pulsed secondary radiation from petawatt-class laser systems.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018, AIP Publishing. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > York Institute for Materials Research The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 21 Nov 2018 10:10 |
Last Modified: | 18 Dec 2024 00:12 |
Published Version: | https://doi.org/10.1063/1.5027297 |
Status: | Published online |
Refereed: | Yes |
Identification Number: | 10.1063/1.5027297 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:138962 |