Ultra-broadband near-infrared NOPAs based on the nonlinear crystals Bi BO and YCOB  

作　　者：Mario Galletti Hugo Pires Victor Hariton Joana Alves Pedro Oliveira Marco Galimberti Goncalo Figueira 

机构地区：[1]GoLP/Instituto de Plasmas e Fusao Nuclear,Instituto Superior Tecnico,Universidade de Lisboa,1049-001 Lisboa,Portugal [2]Central Laser Facility,Science and Technology Facilities Council,Rutherford Appleton Laboratory,Harwell Science and Innovation Campus,Didcot,UK [3]INFN-LNF,Via Enrico Fermi 54,00044 Frascati,Italy

出　　处：《High Power Laser Science and Engineering》2020年第3期6-15,共10页高功率激光科学与工程（英文版）

基　　金：the European Union’s Horizon 2020 research and innovation program under grant agreement No.871124(Laserlab-Europe);the Euratom research and training program 2014–2018 under grant agreement No.633053;the Fundacao para a Ciencia e a Tecnologia(FCT,Lisboa)under grants Nos.PD/BD/114327/2016,PD/BD/135177/2017,PD/BD/135222/2017 and PINFRA/22124/2016;the framework of the Advanced Program in Plasma Science and Engineering(APPLAu SE,sponsored by FCT under grant No.PD/00505/2012)at Instituto Superior Técnico(IST)。

摘　　要：We evaluate and demonstrate ultra-broadband near-infrared noncollinear optical parametric amplification in two nonlinear crystals,bismuth borate(Bi BO)and yttrium calcium oxyborate(YCOB),which are not commonly used for this application.The spectral bandwidth is of the microjoule level;the amplified signal is≥200 nm,capable of supporting sub-10 fs pulses.These results,supported by numerical simulations,show that these crystals have a great potential as nonlinear media in both low-energy,few-cycle systems and high peak power amplifiers for terawatt to petawatt systems based on noncollinear optical parametric chirped pulse amplification(NOPCPA)or a hybrid.

关 键 词：ultrafast laser high power laser nonlinear optics ultra-broadband noncollinear OPA YCOB and Bi BO nonlinear crystal 

分 类 号：TN248[电子电信—物理电子学]