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Terahertz Radiation from a Longitudinal Electric Field Biased Femtosecond Filament in Air

Chinese Physics Letters 2020年第6期37卷 44-47页

作者：刘一刘少杰 Aurélien Houard AndréMysyrowicz vladimir T.tikhonchuk Shanghai Key Lab of Modern Optical System University of Shanghai for Science and TechnologyShanghai 200093China Laboratoire d’Optique Appliquée ENSTA ParisEcole PolytechniqueCNRSInstitut Polytechnique de Paris828 Boulevard des Maréchaux91762 Palaiseau cedexFrance Centre Lasers Intenses et Applications University of Bordeaux-CNRS-CEA351 Cours de la Liberation33405 Talence cedexFrance ELI-Beamlines Institute of PhysicsCzech Academy of Sciences25241 Dolni BrezanyCzech Republic

The terahertz(THz)temporal waveform and spectrum from a longitudinal electrically biased femtosecond filament is studied experimentally.The initial direction of the electron motion inside the unbiased filament plasma is deduced from the transformation of the THz temporal waveform with applied fields of opposite polarities.Furthermore,a spectrum shift to lower frequency of the THz spectrum is observed in the presence of a biased field.It agrees well with theoretical predictions.

关键词： field. spectrum opposite

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Future for inertial-fusion energy in Europe:a roadmap

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High Power Laser Science and Engineering 2023年第6期11卷 162-192页

作者： Dimitri Batani Arnaud Colaitis Fabrizio Consoli Colin N.Danson Leonida Antonio Gizzi Javier Honrubia Thomas Kühl Sebastien Le Pape Jean-Luc Miquel Jose Manuel Perlado R.H.H.Scott Michael Tatarakis Vladimir Tikhonchuk Luca Volpe Centre Lasers Intenses et Applications(CELIA) Universitéde Bordeaux±CNRS±CEATalence cedexFrance ENEA Fusion and Technology for Nuclear Safety and Security DepartmentC.R.FrascatiFrascatiItaly AWE AldermastonReadingUK Centre for Inertial Fusion Studies Blackett LaboratoryImperial College LondonLondonUK Istituto Nazionale di Ottica Consiglio Nazionale delle Ricerche(CNR-INO)PisaItaly ETSIAE Universidad Politecnica de Madrid MadridSpain GSI-Helmholtzzentrum für Schwerionenforschung GmbH DarmstadtGermany Laboratoire pour l’Utilisation des Lasers Intenses(LULI) CNRS±Ecole PolytechniquePalaiseau cedexFrance ALP Le BarpFrance and CEA/DAMÎle de FranceBruyères le ChâtelArpajon cedexFrance Instituto Fusión NuclearªGuillermo Velardeº(IFN-GV) Universidad Politecnica de MadridMadridSpain Central Laser Facility STFC Rutherford Appleton LaboratoryHarwell OxfordOxfordshireUK Institute of Plasma Physics and Lasers University Research and Innovation CentreHellenic Mediterranean UniversityRethymnoCreteGreece Department of Electronic Engineering School of EngineeringHellenic Mediterranean UniversityChaniaCreteGreece Extreme Light Infrastructure ERIC ELI-Beamlines FacilityDolníBÏrežanyCzech Republic Centro de Laseres Pulsados(CLPU) Parque CientificoVillamayorSalamancaSpain

The recent achievement of fusion ignition with laser-driven technologies at the National Ignition Facility sets a historic accomplishment in fusion energy research.This accomplishment paves the way for using laser inertial fusion as a viable approach for future energy production.Europe has a unique opportunity to empower research in this field internationally,and the scientific community is eager to engage in this journey.We propose establishing a European programme on inertial-fusion energy with the mission to demonstrate laser-driven ignition in the direct-drive scheme and to develop pathway technologies for the commercial fusion reactor.The proposed roadmap is based on four complementary axes:(ⅰ)the physics of laser-plasma interaction and burning plasmas;(ⅱ)high-energy high repetition rate laser technology;(ⅲ)fusion reactor technology and materials;and(ⅳ)reinforcement of the laser fusion community by international education and training programmes.We foresee collaboration with universities,research centres and industry and establishing joint activities with the private sector involved in laser fusion.This project aims to stimulate a broad range of high-profile industrial developments in laser,plasma and radiation technologies along with the expected high-level socio-economic impact.

关键词： education and training fusion reactor technology high-energy laser high repetition rate laser inertial confinement fusion laser-plasma interaction public-private partnership radiation resistant materials

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Innovative Education and Training in high power laser plasmas(PowerLaPs) for plasma physics, high power laser-matter interactions and high energy density physics-theory and experiments

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High Power Laser Science and Engineering 2019年第2期7卷 22-26页

作者： John Pasley Georgia Andrianaki Andreas Baroutsos Dimitri Batani Emmanouil P.Benis Marco Borghesi Eugene Clark Donna Cook Emmanuel D'Humieres Vasilios Dimitriou Brendan Dromey Michael Ehret Ioannis Fitilis Anastasios Grigoriadis Satya Kar Evaggelos Kaselouris Ondrej Klimo Michel Koenig Kyriaki Kosma George Koundourakis Milan Kucharik Aveen Lavery Jiri Limpouch Yannis Orphanos Nektarios A.Papadogiannis Stelios Petrakis Dave Riley Maria Serena Rivetta Laura Tejada Pascual Joao Jorge Santos Alexandros Skoulakis Ioannis Tazes Vladimir Tikhonchuk Jocelain Trela Calliope Tsitou Luca Volpe Steven White Mark Yeung Michael Tatarakis York Plasma Institute University of York Technological Educational Institute of Crete School of Applied SciencesCentre for Plasma Physics and Lasers-CPPL Universitéde Bordeaux CNRSCEACELIA(Centre Lasers Intenses et Applications) Department of Physics University of Ioannina Centre for Plasma Physics School of Mathematics and PhysicsQueen’s University Belfast Faculty of Nuclear Sciences and Physical Engineering Czech Technical University in Prague LULI-CNRS Ecole Polytechnique CEA:UniversitéParis-Saclay UPMC Univ Paris 06:Sorbonne Universités CLPU Laser-Plasma Chair University of Salamanca Centro de Láseres Pulsados(CLPU) Edificio M5.Parque Cientfico.C/Adaja

The Erasmus Plus programme’Innovative Education and Training in high power laser plasmas’,otherwise known as PowerLaPs,is described.The PowerLaPs programme employs an innovative paradigm in that it is a multi-centre programme where teaching takes place in five separate institutes with a range of different aims and styles of delivery.The ’in class’ time is limited to four weeks a year,and the programme spans two years.PowerLaPs aims to train students from across Europe in theoretical,applied and laboratory skills relevant to the pursuit of research in laserplasma interaction physics and inertial confinement fusion(ICF).Lectures are intermingled with laboratory sessions and continuous assessment activities.The programme,which is led by workers from the Technological Educational Institute(TEI)of Crete,and supported by co-workers from the Queen’s University Belfast,the University of Bordeaux,the Czech Technical-University in Prague,Ecole Polytechnique,the University of Ioannina,the University of Salamanca and the University of York,has just completed its first year.Thus far three Learning Teaching Training(LTT)activities have been held,at the Queen’s University Belfast,the University of Bordeaux and the Centre for Plasma Physics and Lasers(CPPL)of TEI Crete.The last of these was a two-week long Intensive Programme(IP),while the activities at the other two universities were each five days in length.Thus far work has concentrated upon training in both theoretical and experimental work in plasma physics,high power laser-matter interactions and high energy density physics.The nature of the programme will be described in detail and some metrics relating to the activities carried out to date will be presented.

关键词： higher education inertial confinement fusion laser-plasma interactions post-graduate education

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