We describe how active feedback routines can be applied at a limited repetition rate (5 Hz) to optimize high-power () 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.
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11 June 2018
Research Article|
June 13 2018
Temporal feedback control of high-intensity laser pulses to optimize ultrafast heating of atomic clusters
M. J. V. Streeter
;
M. J. V. Streeter
1
The Cockcroft Institute
, Keckwick Lane, Daresbury WA4 4AD, United Kingdom
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S. J. D. Dann;
S. J. D. Dann
1
The Cockcroft Institute
, Keckwick Lane, Daresbury WA4 4AD, United Kingdom
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J. D. E. Scott;
J. D. E. Scott
1
The Cockcroft Institute
, Keckwick Lane, Daresbury WA4 4AD, United Kingdom
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C. D. Baird;
C. D. Baird
2
York Plasma Institute, Department of Physics, University of York
, York YO10 5DD, United Kingdom
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C. D. Murphy
;
C. D. Murphy
2
York Plasma Institute, Department of Physics, University of York
, York YO10 5DD, United Kingdom
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S. Eardley;
S. Eardley
3
Blackett Laboratory, Imperial College London
, London SW7 2AZ, United Kingdom
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R. A. Smith;
R. A. Smith
3
Blackett Laboratory, Imperial College London
, London SW7 2AZ, United Kingdom
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S. Rozario
;
S. Rozario
4
The John Adams Institute for Accelerator Science, Imperial College London
, London SW7 2AZ, United Kingdom
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J.-N. Gruse;
J.-N. Gruse
4
The John Adams Institute for Accelerator Science, Imperial College London
, London SW7 2AZ, United Kingdom
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S. P. D. Mangles
;
S. P. D. Mangles
4
The John Adams Institute for Accelerator Science, Imperial College London
, London SW7 2AZ, United Kingdom
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Z. Najmudin
;
Z. Najmudin
4
The John Adams Institute for Accelerator Science, Imperial College London
, London SW7 2AZ, United Kingdom
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S. Tata;
S. Tata
5
Tata Institute of Fundamental Research
, Homi Bhabha Road, Colaba, Mumbai 400005, India
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M. Krishnamurthy;
M. Krishnamurthy
5
Tata Institute of Fundamental Research
, Homi Bhabha Road, Colaba, Mumbai 400005, India
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S. V. Rahul;
S. V. Rahul
6
TIFR Center for Interdisciplinary Sciences
, Hyderabad 500107, India
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D. Hazra;
D. Hazra
7
Laser Plasma Section, Raja Ramanna Centre for Advanced Technology
, Indore 452013, India
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P. Pourmoussavi;
P. Pourmoussavi
8
Deutsches Elektronen-Synchrotron DESY
, Notkestr. 85, 22607 Hamburg, Germany
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J. Osterhoff;
J. Osterhoff
8
Deutsches Elektronen-Synchrotron DESY
, Notkestr. 85, 22607 Hamburg, Germany
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J. Hah
;
J. Hah
9
Center for Ultrafast Optical Science, University of Michigan
, Ann Arbor, Michigan 48109-2099, USA
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N. Bourgeois;
N. Bourgeois
10
Central Laser Facility, STFC Rutherford Appleton Laboratory
, Didcot OX11 0QX, United Kingdom
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C. Thornton;
C. Thornton
10
Central Laser Facility, STFC Rutherford Appleton Laboratory
, Didcot OX11 0QX, United Kingdom
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C. D. Gregory;
C. D. Gregory
10
Central Laser Facility, STFC Rutherford Appleton Laboratory
, Didcot OX11 0QX, United Kingdom
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C. J. Hooker;
C. J. Hooker
10
Central Laser Facility, STFC Rutherford Appleton Laboratory
, Didcot OX11 0QX, United Kingdom
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O. Chekhlov;
O. Chekhlov
10
Central Laser Facility, STFC Rutherford Appleton Laboratory
, Didcot OX11 0QX, United Kingdom
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S. J. Hawkes;
S. J. Hawkes
10
Central Laser Facility, STFC Rutherford Appleton Laboratory
, Didcot OX11 0QX, United Kingdom
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B. Parry;
B. Parry
10
Central Laser Facility, STFC Rutherford Appleton Laboratory
, Didcot OX11 0QX, United Kingdom
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V. A. Marshall;
V. A. Marshall
10
Central Laser Facility, STFC Rutherford Appleton Laboratory
, Didcot OX11 0QX, United Kingdom
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Y. Tang;
Y. Tang
10
Central Laser Facility, STFC Rutherford Appleton Laboratory
, Didcot OX11 0QX, United Kingdom
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E. Springate;
E. Springate
10
Central Laser Facility, STFC Rutherford Appleton Laboratory
, Didcot OX11 0QX, United Kingdom
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P. P. Rajeev;
P. P. Rajeev
10
Central Laser Facility, STFC Rutherford Appleton Laboratory
, Didcot OX11 0QX, United Kingdom
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A. G. R. Thomas
;
A. G. R. Thomas
1
The Cockcroft Institute
, Keckwick Lane, Daresbury WA4 4AD, United Kingdom
9
Center for Ultrafast Optical Science, University of Michigan
, Ann Arbor, Michigan 48109-2099, USA
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D. R. Symes
D. R. Symes
10
Central Laser Facility, STFC Rutherford Appleton Laboratory
, Didcot OX11 0QX, United Kingdom
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Appl. Phys. Lett. 112, 244101 (2018)
Article history
Received:
March 01 2018
Accepted:
April 24 2018
Connected Content
A companion article has been published:
Genetic algorithms shape laser pulses to optimize plasma X-ray production
Citation
M. J. V. Streeter, S. J. D. Dann, J. D. E. Scott, C. D. Baird, C. D. Murphy, S. Eardley, R. A. Smith, S. Rozario, J.-N. Gruse, S. P. D. Mangles, Z. Najmudin, S. Tata, M. Krishnamurthy, S. V. Rahul, D. Hazra, P. Pourmoussavi, J. Osterhoff, J. Hah, N. Bourgeois, C. Thornton, C. D. Gregory, C. J. Hooker, O. Chekhlov, S. J. Hawkes, B. Parry, V. A. Marshall, Y. Tang, E. Springate, P. P. Rajeev, A. G. R. Thomas, D. R. Symes; Temporal feedback control of high-intensity laser pulses to optimize ultrafast heating of atomic clusters. Appl. Phys. Lett. 11 June 2018; 112 (24): 244101. https://doi.org/10.1063/1.5027297
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