Saturable plasmonic metasurfaces for laser mode locking
作者机构：Laboratoire Interdisciplinaire Carnot de BourgogneUniversite Bourgogne Franche-Comte9 avenue Alain Savary21078 DijonFrance Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang ProvinceSchool of EngineeringWestlake University18 Shilongshan Road310024 HangzhouZhejiang ProvinceChina Institute of Advanced TechnologyWestlake Institute for Advanced Study18 Shilongshan Road310024 HangzhouZhejiang ProvinceChina Department of ElectrotechnologyFederal Institute of BahiaR.Emidio dos Santos40301015 SalvadorBrazil
出 版 物：《Light(Science & Applications)》 (光（科学与应用)（英文版）)
年 卷 期：2020年第9卷第1期
页 面：1538-1546页
核心收录：
学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学]
基 金：supported by the EIPHI Graduate School(contract”ANR-17-EURE-0002”) the COMUSIM(contract“ANR-17-CE24–0010–01”) RANDOM(contract“ANR-19-CE24-0014”)projects the FEDER Program the financial support from the National Natural Science Foundation of China(NSFC,No.61905200) the Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior(Brasil-CAPES-Finance Code 001)for financial support
主 题：properties absorber overcome
摘 要：Metamaterials are artificial materials made of subwavelength elementary cells that give rise to unexpected wave properties that do not exist ***,these properties are generally achieved due to 3D patterning,which is hardly feasible at short wavelengths in the visible and near-infrared regions targeted by most photonic *** overcome this limitation,metasurfaces,which are the 2D counterparts of metamaterials,have emerged as promising platforms that are compatible with planar nanotechnologies and thus mass production,which platforms the properties of a metamaterial into a 2D *** the linear regime,wavefront manipulation for lensing,holography,and polarization control has been achieved *** in metasurfaces operating in the nonlinear regime has also increased due to the ability of metasurfaces to efficiently convert incident light into harmonic frequencies with unusual polarization ***,to date,the nonlinear absorption of metasurfaces has been mostly ***,we demonstrate that plasmonic metasurfaces behave as saturable absorbers with modulation performances superior to the modulation performance of other 2D materials and exhibit unusual polarimetric nonlinear transfer *** quantify the link between saturable absorption,the plasmonic resonances of the unit cell and their distribution in a 2D metasurface,and finally provide a practical implementation by integrating the metasurfaces into a fiber laser cavity operating in pulsed regimes driven by the metasurface *** such,this work provides new perspectives on ultrathin nonlinear saturable absorbers for applications where tunable nonlinear transfer functions are needed,such as in ultrafast lasers or neuromorphic circuits.
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