Role of carrier-transfer in the optical nonlinearity of graphene/Bi<sub>2</sub>Te<sub>3</sub> heterojunctions
Jia‐Chi Lan, Junpeng Qiao, Wei-Heng Sung, Chun‐Hu Chen, Ren‐Huai Jhang, Shi‐Hsin Lin, L. S. B. Ng, Gengchiau Liang, Meng-Yu Wu, Li-Wei Tu, Cheng‐Maw Cheng, Hong Liu, Chao-Kuei Lee
Abstract
By fabricating graphene/Bi<sub>2</sub>Te<sub>3</sub> heterojunction, the mechanism of carrier-transfer resulting in enhanced optical nonlinearity was investigated. The rapid over-saturation of Bi<sub>2</sub>Te<sub>3</sub> is solved and a better performance is acquired in Q-switched laser.
Topics & Concepts
GrapheneHeterojunctionMaterials scienceNonlinear opticalNonlinear systemOptoelectronicsCharge-carrier densityTransfer (computing)NanotechnologyPhysicsComputer scienceQuantum mechanicsDopingParallel computingNonlinear Optical Materials StudiesPhotonic and Optical DevicesAdvanced Fiber Laser Technologies