Suppressing small-scale self-focusing of high-power femtosecond pulses  

作　　者：Mikhail Martyanov Vladislav Ginzburg Alexey Balakin Sergey Skobelev Dmitry Silin Anton Kochetkov Ivan Yakovlev Alexey Kuzmin Sergey Mironov Ilya Shaikin Sergey Stukachev Andrey Shaykin Efim Khazanov Alexander Litvak 

机构地区：[1]Institute of Applied Physics of the Russian Academy of Sciences,Nizhny Novgorod,Russia

出　　处：《High Power Laser Science and Engineering》2023年第2期103-109,共7页高功率激光科学与工程（英文版）

基　　金：This work was supported by the Ministry of Science and Higher Education of the Russian Federation No.075-15-2020-906(Center of Excellence‘Center of Photonics’).

摘　　要：It was shown experimentally that for a 65-fs 17-J pulse,the effect of filamentation instability,also known as small-scale self-focusing,is much weaker than that predicted by stationary and nonstationary theoretical models for high B-integral values.Although this discrepancy has been left unexplained at the moment,in practice no signs of filamentation may allow a breakthrough in nonlinear pulse post-compression at high laser energy.

关 键 词：B-integral cubic Kerr nonlinearity filamentation instability high-power femtosecond laser nonlinear post-compression 

分 类 号：TN24[电子电信—物理电子学]