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Control systems and data management for high-power laser facilities

high power Laser Science and Engineering 2023年第5期11卷 51-75页

作者： Scott Feister Kevin Cassou Stephen Dann Andreas Döpp Philippe Gauron Anthony J.Gonsalves Archis Joglekar Victoria Marshall Olivier Neveu Hans-Peter Schlenvoigt Matthew J.V.Streeter Charlotte A.J.Palmer California State University Channel Islands CamarilloCaliforniaUSA UniversitéParis-Saclay CNRS/IN2P3IJCLabOrsayFrance Central Laser Facility STFC Rutherford Appleton LaboratoryDidcotUK Ludwig–Maximilians–Universität München GarchingGermany BELLA Center Lawrence Berkeley National LaboratoryBerkeleyCaliforniaUSA Department of Nuclear Engineering and Radiological Sciences University of MichiganAnn ArborMichiganUSA Ergodic LLC San FranciscoCaliforniaUSA Helmholtz-Zentrum Dresden–Rossendorf DresdenGermany Queen’s University Belfast BelfastUK

The next generation of high-power lasers enables repetition of experiments at orders of magnitude higher frequency than what was possible using the prior generation.Facilities requiring human intervention between laser repetitions need to adapt in order to keep pace with the new laser technology.A distributed networked control system can enable laboratory-wide automation and feedback control loops.These higher-repetition-rate experiments will create enormous quantities of data.A consistent approach to managing data can increase data accessibility,reduce repetitive data-software development and mitigate poorly organized metadata.An opportunity arises to share knowledge of improvements to control and data infrastructure currently being undertaken.We compare platforms and approaches to state-of-the-art control systems and data management at high-power laser facilities,and we illustrate these topics with case studies from our community.

关键词： big data community organization control systems data management feedback loops high-power lasers high repetition rate metadata stabilization standards

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Angle amplifier in a 2D beam scanning system based on peristrophic multiplexed volume Bragg gratings

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high power Laser Science and Engineering 2023年第1期11卷 99-106页

作者： Yuanzhi Dong Yunxia Jin Fanyu Kong Jingyin Zhao Jianwei Mo Dongbing He Jing Sun Jianda Shao Thin Film Optics Laboratory Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina School of Physical Sciences University of Science and Technology of ChinaHefeiChina Key Laboratory of high power Laser Materials Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina CAS Center for Excellence in Ultra-intense Laser Science Chinese Academy of SciencesShanghaiChina Hangzhou Institute for Advanced Study University of Chinese Academy of SciencesHangzhouChina

In this paper,a 2D angle amplifier based on peristrophic multiplexed volume Bragg gratings is designed and prepared,in which a calculation method is firstly proposed to optimize the number of channels to a minimum.The induction of peristrophic multiplexing reduces the performance difference in one bulk of the grating,whereas there is no need to deliberately optimize the fabrication process.It is revealed that a discrete 2D angle deflection range of±30°is obtained and the relative diffraction efficiency of all the grating channels reaches more than 55%with a root-meansquare deviation of less than 3.4%in the same grating.The deviation of the Bragg incidence and exit angles from the expected values is less than 0.07°.It is believed that the proposed 2D angle amplifier has the potential to realize high-performance and large-angle beam steering in high-power laser beam scanning systems.

关键词： beam scanning high-power lasers volume Bragg gratings

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A perspective on high photon flux nonclassical light and applications in nonlinear optics

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high power Laser Science and Engineering 2020年第4期8卷 98-103页

作者： Th.Lamprou I.Liontos N.C.Papadakis P.Tzallas Foundation for Research and Technology-Hellas Institute of Electronic Structure and Laser70013 Heraklion(Crete)Greece Department of Physics University of Crete70013 Heraklion(Crete)Greece Mechanical Engineering Department School of Applied SciencesHellenic Mediterranean University71410 HeraklionGreece ELI-ALPS ELI-Hu Non-Profit Ltd.H-6720 SzegedHungary

Nonclassical light sources have a vital role in quantum optics as they offer a unique resource for studies in quantum technology.However,their applicability is restricted by their low intensity,while the development of new schemes producing intense nonclassical light is a challenging task.In this perspective article,we discuss potential schemes that could be used towards the development of high photon flux nonclassical light sources and their future prospects in nonlinear optics.

关键词： quantum optics nonlinear optics high-power lasers

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Laser produced electromagnetic pulses: generation, detection and mitigation

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high power Laser Science and Engineering 2020年第2期8卷 88-146页

作者： Fabrizio Consoli Vladimir TTikhonchuk Matthieu Bardon Philip Bradford David CCarroll Jakub Cikhardt Mattia Cipriani Robert JClarke Thomas ECowan Colin NDanson Riccardo De Angelis Massimo De Marco Jean-Luc Dubois Bertr Etchessahar Alejro Laso Garcia David IHillier Ales Honsa Weiman Jiang Viliam Kmetik Josef Krása Yutong Li FredériéLubrano Paul McKenna Josefine Metzkes-Ng Alexre Poyé Irene Prencipe Piotr Ra¸czka Rol ASmith Roman Vrana Nigel CWoolsey Egle Zemaityte Yihang Zhang Zhe Zhang Bernhard Zielbauer David Neely ENEA Fusion and Technologies for Nuclear Safety DepartmentC.R.Frascati00044 FrascatiItaly CELIA University of BordeauxCNRSCEA33405 TalenceFrance ELI Beamlines Institute of PhysicsCzech Academy of Sciences25241 Dolni BrezanyCzech Republic CEA DAMCESTA33116 Le BarpFrance Department of Physics York Plasma InstituteUniversity of YorkHeslingtonYork YO105DDUK Central Laser Facility Rutherford Appleton LaboratorySTFCUKRIChiltonDidcotOxfordshire OX110QXUK Czech Technical University in Prague Faculty of Electrical Engineering16627 Prague 6Czech Republic Institute of Plasma Physics of the Czech Academy of Sciences Za Slovankou 318200 PragueCzech Republic Helmholtz-Zentrum Dresden-Rossendorf Institut fur Strahlenphysik01328 DresdenGermany AWE plc AldermastonReadingBerkshire RG74PRUK OxCHEDS Clarendon LaboratoryDepartment of PhysicsUniversity of OxfordOxford OX13PUUK CIFS The Blackett LaboratoryImperial College LondonLondon SW72AZUK Centro de Laseres Pulsados(CLPU) 37185 VillamayorSalamancaSpain Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Institute of Physics of the Czech Academy of Sciences Na Slovance 218221 PragueCzech Republic School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Department of Physics Scottish Universities Physics Alliance(SUPA)University of StrathclydeGlasgow G40NGUK Laboratory PIIM University Aix-Marseille-CNRS13397 MarseilleFrance Institute of Plasma Physics and Laser Microfusion 01-497 WarsawPoland The Blackett Laboratory Imperial College LondonLondon SW72AZUK PHELIX Group GSI Helmholtzzentrum fur SchwerionenforschungD-64291 DarmstadtGermany

This paper provides an up-to-date review of the problems related to the generation,detection and mitigation of strong electromagnetic pulses created in the interaction of high-power,high-energy laser pulses with different types of solid targets.It includes new experimental data obtained independently at several international laboratories.The mechanisms of electromagnetic field generation are analyzed and considered as a function of the intensity and the spectral range of emissions they produce.The major emphasis is put on the GHz frequency domain,which is the most damaging for electronics and may have important applications.The physics of electromagnetic emissions in other spectral domains,in particular THz and MHz,is also discussed.The theoretical models and numerical simulations are compared with the results of experimental measurements,with special attention to the methodology of measurements and complementary diagnostics.Understanding the underlying physical processes is the basis for developing techniques to mitigate the electromagnetic threat and to harness electromagnetic emissions,which may have promising applications.

关键词： electromagnetic pulses high-power lasers diagnostics mitigation techniques

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Analysis of microscopic properties of radiative shock experiments performed at the Orion laser facility

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high power Laser Science and Engineering 2018年第2期6卷 189-201页

作者： R.Rodriguez G.Espinosa J.M.Gil E Suzuki-Vidal T.Clayson C.Stehle E Graham IUNAT Departamento de FisicaUniversidad de Las Palmas de Gran Canaria35017 Las Palmas de Gran CanariaSpain Instituto de Fusion Nuclear Universidad Politecnica de Madrid28040 MadridSpain Blackett Laboratory Imperial CollegeLondon SW7 2AZUK LERMA Sorbonne UniversitesUPMCObservatoire de ParisPSL Research UniversityCNRSF-75006 ParisFrance AWE AldermastonReading RG7 4PRUK

In this work we have conducted a study on the radiative and spectroscopic properties of the radiative precursor and the post-shock region from experiments with radiative shocks in xenon performed at the Orion laser facility. The study is based on post-processing of radiation-hydrodynamics simulations of the experiment. In particular, we have analyzed the thermodynamic regime of the plasma, the charge state distributions, the monochromatic opacities and emissivities, and the specific intensities for plasma conditions of both regions. The study of the intensities is a useful tool to estimate ranges of electron temperatures present in the xenon plasma in these experiments and the analysis performed of the microscopic properties commented above helps to better understand the intensity spectra. Finally, a theoretical analysis of the possibility of the onset of isobaric thermal instabilities in the post-shock has been made, concluding that the instabilities obtained in the radiative-hydrodynamic simulations could be thermal ones due to strong radiative cooling.

关键词： high-power lasers laboratory experiments on radiative shocks plasma radiative properties spectroscopy

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A history of high-power laser research and development in the United Kingdom

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high power Laser Science and Engineering 2021年第2期9卷 41-126页

作者： Colin N.Danson Malcolm White John R.M.Barr Thomas Bett Peter Blyth David Bowley Ceri Brenner Robert J.Collins Neal Croxford A.E.Bucker Dangor Laurence Devereux Peter E.Dyer Anthony Dymoke-Bradshaw Christopher B.Edwards Paul Ewart Allister I.Ferguson John M.Girkin Denis R.Hall David C.Hanna Wayne Harris David I.Hillier Christopher J.Hooker Simon M.Hooker Nicholas Hopps Janet Hull David Hunt Dino A.Jaroszynski Mark Kempenaars Helmut Kessler Sir Peter L.Knight Steve Knight Adrian Knowles Ciaran L.S.Lewis Ken S.Lipton Abby Littlechild John Littlechild Peter Maggs Graeme P.A.Malcolm OBE Stuart P.D.Mangles William Martin Paul McKenna Richard O.Moore Clive Morrison Zulfikar Najmudin David Neely Geoff H.C.New Michael J.Norman Ted Paine Anthony W.Parker Rory R.Penman Geoff J.Pert Chris Pietraszewski Andrew Randewich Nadeem H.Rizvi Nigel Seddon MBE Zheng-Ming Sheng David Slater Roland A.Smith Christopher Spindloe Roy Taylor Gary Thomas John W.G.Tisch Justin S.Wark Colin Webb S.Mark Wiggins Dave Willford Trevor Winstone AWE Aldermaston ReadingUK Oxford Centre for high Energy Density Science Department of PhysicsClarendon LaboratoryUniversity of OxfordOxfordUK Centre for Intertial Fusion Studies Blackett LaboratoryImperial College LondonLondonUK Formerly of Electrox LetchworthUK Formerly of Central Laser Facility Rutherford LaboratoryDidcotUK Formerly of Ferranti Defence Systems LincolnUK Leonardo EdinburghUK Retired AWEReadingUK Formerly of AWE ReadingUK Formerly of Laser Lines Ltd BanburyUK Formerly of Optilas Ltd Milton KeynesUK Retired Pro-Lite TechnologyCranfieldUK Specialised Imaging Ltd PitstoneUK Central Laser Facility STFC Rutherford Appleton LaboratoryDidcotUK Magna-power Electronics Ltd ReadingUK DeBe lasers Needham Laser TechnologiesWhitchurchUK Blackett Laboratory Imperial College LondonLondonUK SPIE Europe CardiffUK Professor Emeritus(Physics) University of HullKingston upon HullUK Kentech Instruments Ltd WallingfordUK Department of Physics Clarendon LaboratoryUniversity of OxfordOxfordUK Professor Emeritus Department of PhysicsUniversity of StrathclydeGlasgowUK Department of Physics Durham UniversityDurhamUK Professor Emeritus(Photonics) Heriot-Watt UniversityEdinburghUK Professor Emeritus University of SouthamptonSouthamptonUK Optical Surfaces Ltd KenleyUK JEH lasers Ltd RugbyUK Scottish Universities Physics Alliance Department of PhysicsUniversity of StrathclydeGlasgowUK ITER Organization Saint-Paul-lez-DuranceFrance Manx Precision Optics Ltd BallasallaUK Laser Lines Ltd BanburyUK Elliot Scientific Ltd MetroTest Scientific GroupHarpendenUK Centre for Plasma Physics Queen’s University BelfastBelfastUK Retired Founderand former MDRofin-Sinar UK LtdHullUK Heraeus Noblelight Ltd CambridgeUK Mirli Books ChelmsfordUK M Squared lasers Ltd GlasgowUK University of Hertfordshire HatfieldUK E&EO UK Ltd Barton-upon-HumberUK Department of Physics University of YorkYorkUK IC Optical Systems Ltd BeckenhamUK Laser Micromachining Ltd St AsaphUK MBDA UK Ltd Brist

The first demonstration of laser action in ruby was made in 1960 by T.H.Maiman of Hughes Research Laboratories,USA.Many laboratories worldwide began the search for lasers using different materials,operating at different wavelengths.In the UK,academia,industry and the central laboratories took up the challenge from the earliest days to develop these systems for a broad range of applications.This historical review looks at the contribution the UK has made to the advancement of the technology,the development of systems and components and their exploitation over the last 60 years.

关键词： high-power lasers history United Kingdom

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high-power non-perturbative laser delivery diagnostics at the final focus of 100-TW-class laser pulses

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high power Laser Science and Engineering 2021年第2期9卷 174-183页

作者： Fumika Isono Jeroen van Tilborg Samuel K.Barber Joseph Natal Curtis Berger Hai-En Tsai Tobias Ostermayr Anthony Gonsalves Cameron Geddes Eric Esarey Lawrence Berkeley National Laboratory BerkeleyCAUSA University of California BerkeleyCAUSA

Controlling the delivery of multi-terawatt and petawatt laser pulses to final focus,both in position and angle,is critical to many laser applications such as optical guiding,laser–plasma acceleration,and laser-produced secondary radiation.We present an online,non-destructive laser diagnostic,capable of measuring the transverse position and pointing angle at focus.The diagnostic is based on a unique double-surface-coated wedged-mirror design for the final steering optic in the laser line,producing a witness beam highly correlated with the main beam.By propagating low-power kilohertz pulses to focus,we observed spectra of focus position and pointing angle fluctuations dominated by frequencies below 70 Hz.The setup was also used to characterize the excellent position and pointing angle correlation of the 1 Hz high-power laser pulses to this low-power kilohertz pulse train,opening a promising path to fast non-perturbative feedback concepts even on few-hertz-class high-power laser systems.

关键词： high-power lasers laser diagnostics laser stabilization

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Time-dependent measurement of high-power laser light reflection by low-Z foam plasma

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high power Laser Science and Engineering 2021年第3期9卷 40-53页

作者： M.Cipriani S.Yu.Gus’kov F.Consoli R.De Angelis A.A.Rupasov P.Andreoli G.Cristofari G.Di Giorgio M.Salvadori ENEA Fusion and Technologies for Nuclear Safety DepartmentC.R.FrascatiFrascati(Rome)Italy Lebedev Physical Institute MoscowRussia Universita di Roma La Sapienza RomaItaly INRS-EMT VarennesQuebecCanada

Porous materials have many applications for laser–matter interaction experiments related to inertial confinement fusion.Obtaining new knowledge about the properties of the laser-produced plasma of porous media is a challenging task.In this work,we report,for the first time to the best of our knowledge,the time-dependent measurement of the reflected light of a terawatt laser pulse from the laser-produced plasma of low-Z foam material of overcritical density.The experiments have been performed with the ABC laser,with targets constituted by foam of overcritical density and by solid media of the same chemical composition.We implemented in the MULTI-FM code a model for the light reflection to reproduce and interpret the experimental results.Using the simulations together with the experimental results,we indicate a criterion for estimating the homogenization time of the laser-produced plasma,whose measurement is challenging with direct diagnostic techniques and still not achieved.

关键词： porous materials foams high-power lasers numerical simulations inertial confinement fusion

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