A renewable double plasma mirror for Petawatt-class lasers

Abstract Exceptional pulse contrast can be critical for ultraintense laser experiments, particularly when using solid density targets, and their use is becoming widespread. However, current plasma mirror technology is becoming inadequate for the new generation of high repetition rate, high power las...

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Main Authors: Nick Czapla, Derek M. Nasir, Lieselotte Obst-Huebl, Anthony Zingale, Jianhui Bin, Anthony J. Gonsalves, Sven Steinke, Kei Nakamura, Carl B. Schroeder, Eric Esarey, Cameron G. R. Geddes, Douglass W. Schumacher
Format: Article
Language:English
Published: Nature Portfolio 2025-07-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-025-07016-3
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author Nick Czapla
Derek M. Nasir
Lieselotte Obst-Huebl
Anthony Zingale
Jianhui Bin
Anthony J. Gonsalves
Sven Steinke
Kei Nakamura
Carl B. Schroeder
Eric Esarey
Cameron G. R. Geddes
Douglass W. Schumacher
author_facet Nick Czapla
Derek M. Nasir
Lieselotte Obst-Huebl
Anthony Zingale
Jianhui Bin
Anthony J. Gonsalves
Sven Steinke
Kei Nakamura
Carl B. Schroeder
Eric Esarey
Cameron G. R. Geddes
Douglass W. Schumacher
author_sort Nick Czapla
collection DOAJ
description Abstract Exceptional pulse contrast can be critical for ultraintense laser experiments, particularly when using solid density targets, and their use is becoming widespread. However, current plasma mirror technology is becoming inadequate for the new generation of high repetition rate, high power lasers now available. We describe a novel double plasma mirror configuration based on renewable, free standing, ultrathin liquid crystal films tested at the BELLA Petawatt Laser Center. Although operating at a repetition rate of several shots per minute, this system can be scaled to a high repetition rate exceeding 1 Hz and represents an important step towards enabling sustained, continuous operation of plasma mirrors. We demonstrate an improvement of two to three orders of magnitude in contrast and a total throughput of 80%. We present the first measurements of a beam reflected from a single or double plasma mirror system using a wavefront sensor, showing a well preserved wavefront and spatial mode. Finally, we introduce a model that predicts the total throughput through this double plasma mirror. This is the first model that accurately predicts the peak reflectivity of a plasma mirror when given the laser temporal profile.
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issn 2045-2322
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publishDate 2025-07-01
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spelling doaj-art-b3b7d9e728434e5cbca39bc9235a50ec2025-08-20T03:45:26ZengNature PortfolioScientific Reports2045-23222025-07-0115111010.1038/s41598-025-07016-3A renewable double plasma mirror for Petawatt-class lasersNick Czapla0Derek M. Nasir1Lieselotte Obst-Huebl2Anthony Zingale3Jianhui Bin4Anthony J. Gonsalves5Sven Steinke6Kei Nakamura7Carl B. Schroeder8Eric Esarey9Cameron G. R. Geddes10Douglass W. Schumacher11SLAC National Accelerator LaboratoryPhysics Department, The Ohio State UniversityAccelerator Technology and Applied Physics Division, Lawrence Berkeley National LaboratoryPhysics Department, The Ohio State UniversityAccelerator Technology and Applied Physics Division, Lawrence Berkeley National LaboratoryAccelerator Technology and Applied Physics Division, Lawrence Berkeley National LaboratoryAccelerator Technology and Applied Physics Division, Lawrence Berkeley National LaboratoryAccelerator Technology and Applied Physics Division, Lawrence Berkeley National LaboratoryAccelerator Technology and Applied Physics Division, Lawrence Berkeley National LaboratoryAccelerator Technology and Applied Physics Division, Lawrence Berkeley National LaboratoryAccelerator Technology and Applied Physics Division, Lawrence Berkeley National LaboratoryPhysics Department, The Ohio State UniversityAbstract Exceptional pulse contrast can be critical for ultraintense laser experiments, particularly when using solid density targets, and their use is becoming widespread. However, current plasma mirror technology is becoming inadequate for the new generation of high repetition rate, high power lasers now available. We describe a novel double plasma mirror configuration based on renewable, free standing, ultrathin liquid crystal films tested at the BELLA Petawatt Laser Center. Although operating at a repetition rate of several shots per minute, this system can be scaled to a high repetition rate exceeding 1 Hz and represents an important step towards enabling sustained, continuous operation of plasma mirrors. We demonstrate an improvement of two to three orders of magnitude in contrast and a total throughput of 80%. We present the first measurements of a beam reflected from a single or double plasma mirror system using a wavefront sensor, showing a well preserved wavefront and spatial mode. Finally, we introduce a model that predicts the total throughput through this double plasma mirror. This is the first model that accurately predicts the peak reflectivity of a plasma mirror when given the laser temporal profile.https://doi.org/10.1038/s41598-025-07016-3
spellingShingle Nick Czapla
Derek M. Nasir
Lieselotte Obst-Huebl
Anthony Zingale
Jianhui Bin
Anthony J. Gonsalves
Sven Steinke
Kei Nakamura
Carl B. Schroeder
Eric Esarey
Cameron G. R. Geddes
Douglass W. Schumacher
A renewable double plasma mirror for Petawatt-class lasers
Scientific Reports
title A renewable double plasma mirror for Petawatt-class lasers
title_full A renewable double plasma mirror for Petawatt-class lasers
title_fullStr A renewable double plasma mirror for Petawatt-class lasers
title_full_unstemmed A renewable double plasma mirror for Petawatt-class lasers
title_short A renewable double plasma mirror for Petawatt-class lasers
title_sort renewable double plasma mirror for petawatt class lasers
url https://doi.org/10.1038/s41598-025-07016-3
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