Post-compression of high-energy,sub-picosecond laser pulses

作     者：P.-G.Bleotu J.Wheeler S.Yu.Mironov V.Ginzburg M.Masruri A.Naziru R.Secareanu D.Ursescu F.Perez J.De Sousa D.Badarau E.Veuillot P.Audebert E.Khazanov G.Mourou 

作者机构：LULI-CNRSCEAUniversite SorbonneEcole PolytechniqueInstitut Polytechnique de ParisPalaiseau CEDEXFrance Doctoral School of PhysicsUniversity of BucharestBucharest-MagureleRomania Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering(IFIN-HH)MagureleRomania IZESTEcole PolytechniqueInstitut Polytechnique de ParisPalaiseau CEDEXFrance Independent ResearcherBourg-La-ReineFrance Federal Research Center Institute of Applied Physics of the Russian Academy of Sciences(IAP RAS)Nizhny NovgorodRussia 

出 版 物：《High Power Laser Science and Engineering》 (高功率激光科学与工程（英文版）)

年 卷 期：2023年第11卷第2期

页      面：117-126页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：This work was supported by the Center of Excellence‘Center of Photonics’,Ministry of Science and Higher Education of the Russian Federation(contract No.075-15-2020-906) Project ELI-RO 16/2020 SBUF funded by the Institute for Atomic Physics(IFA)and by the Council for Doctoral Studies(CSUD),University of Bucharest 

主　　题：high-power laser nonlinear pulse interaction post-compression self-phase modulation 

摘      要：The post-compression technique based on self-phase modulation of high-energy pulses leads to an increase in achievable peak power and ***,the pulses considered in experiments have been less than 100 fs in ***,the method is applied to the ELFIE laser system at the LULI facility,for a pulse of 7 J energy and an initial measured duration of 350 fs.A 5-mm-thick fused silica window and a 2 mm cyclic-olefin polymer were used as optical nonlinear *** 9 cm diameter beam was spectrally broadened to a bandwidth corresponding to 124 fs Fourier-limited pulse duration,and then it was partly post-compressed to 200 *** measuring the spatial spectra of the beam fluence,a uniform gain factor of 4 increase in the fluctuations over the studied range of frequencies is observed,due to small-scale self-focusing.