SnSe<sub>2</sub>-functionalized ultrafast terahertz switch with ultralow pump threshold
Xing Xu, Jing Lou, Shiyou Wu, Ying Yu, Jiangang Liang, Yindong Huang, Guangyou Fang, Chao Chang
Abstract
Benefiting from the laser-excited high photoconductivity up to 10 5 S m −1 of 10 nm SnSe 2 film, the active metadevice enables ultrafast modulation of THz waves with an extremely low 400 nm optical pump.
Topics & Concepts
Materials scienceTerahertz radiationUltrashort pulseOptoelectronicsPhotoconductivityOptical pumpingLaserExcited stateModulation (music)OpticsAtomic physicsPhysicsPhilosophyAestheticsTerahertz technology and applicationsPhotonic and Optical DevicesSemiconductor Quantum Structures and Devices