A universal route to efficient non-linear response via Thomson scattering in linear solids  

作　　者：Yongzheng Wen Flavio Giorgianni Igor Ilyakov Baogang Quan Sergey Kovalev Chen Wang Carlo Vicario Jan-Christoph Deinert Xiaoyu Xiong Joe Bailey Min Chen Alexey Ponomaryov Nilesh Awari Andrea Rovere Jingbo Sun Roberto Morandotti Luca Razzari Gabriel Aeppli Junjie Li Ji Zhou 

机构地区：[1]State Key Laboratory of New Ceramics and Fine Processing,School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China [2]Paul Scherrer Institut,Villigen PSI 5232,Switzerland [3]Helmholtz-Zentrum Dresden-Rossendorf,Dresden 01328,Germany [4]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [5]Institut de Physique, école Polytechnique Fédérale de Lausanne (EPFL),Lausanne CH-1015,Switzerland [6]Institut National de la Recherche Scientifique (INRS), Centreénergie, Matériaux et Télécommunications (EMT),Varennes J3X1P7,Canada [7]Department of Physics and Quantum Center,ETH Zürich,Zürich CH-8093,Switzerland

出　　处：《National Science Review》2023年第7期198-207,共10页国家科学评论（英文版）

基　　金：supported by the National Key R&D Program of China(2022YFB3806000);the Basic Science Center Project of National Natural Science Foundation of China(52388201);the National Natural Science Foundation of China(92163129and 52072203);supported by the National Natural Science Foundation of China(12074420 and U21A20140);the Beijing Municipal Science and Technology Commission,Administrative Commission of Zhongguancun Science Park(Z211100004821009);supported by the European Union’s Horizon 2020 Research and Innovation Programme under Marie Sk lodowska-Curie Grant Agreement No.66566;the ERC Synergy Project HERO Grant Agreement No.81045;supported by the Natural Sciences and Engineering Research Council of Canada(NSERC)under the Discovery Grant Program。

摘　　要：Non-linear materials are cornerstones of modern optics and electronics.Strong dependence on the intrinsic properties of particular materials,however,inhibits the at-will extension of demanding non-linear effects,especially those second-order ones,to widely adopted centrosymmetric materials(for example,silicon)and te chnologically important burgeoning spectral domains(for example,terahertz frequencies).Here we introduce a universal route to efficient non-linear responses enabled by exciting non-linear Thomson scattering,a fundamental process in electrodynamics that was known to occur only in relativistic electrons in metamaterial composed of linear materials.Such a mechanism modulates the trajectory of charges,either intrinsically or extrinsically provided in solids,at twice the driving frequency,allowing second-harmonic generation at terahertz frequencies on crystalline silicon with extremely large non-linear susceptibility in our proof-of-concept experiments.By offering a substantially material-and frequency-independent platform,our approach opens new possibilities in the fields of on-demand non-linear optics,terahertz sources,strong field light-solid interactions and integrated photonic circuits.

关 键 词：non-linear optical materials terahertz harmonic generation Thomson scattering magneto-electric coupling METAMATERIAL 

分 类 号：O436.2[机械工程—光学工程]