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发布时间 : 2015-11-20新加坡国立大学季伟教授来中心做学术交流

学术交流题目:Nonlinear Optics with Advanced Materials

主讲人:Prof. Wei Ji
Department of Physics
National University of Singapore
 
 
主讲内容:
Nonlinear optics was born in 1961, only one year after the invention of the laser. Since then, nonlinear optical phenomena have found a wide range of applications. To realize viable technological applications, materials with strong nonlinear optical properties are the key. Recent advances in two-dimensional materials (2DMs) and metal-organic frameworks (MOFs) have offered new types of materials. In this talk, we focus on their nonlinear optical responses when they are excited by processes of multiphoton absorption. As example [1, 2], we present our fundamental studies on two-photon absorption in graphene. And we discuss the implication to their application to mode-locking operations for generating short laser pulses. In addition, we report both multiphoton-excited photoluminescence and third-harmonic generation from metal-oxide frameworks [3]. Their potentials are demonstrated for light frequency converters and nonlinear-optical devices.