Department of Physics, Engineering Physics & Astronomy

Department of Physics, Engineering Physics & Astronomy
Department of Physics, Engineering Physics & Astronomy

Light induced nanostructures in solids

Ravi Bhardwaj
Department of Physics, Ottawa University

Thurs, Nov. 7, 2013
10:30 AM @ Stirling 401

Abstract:

Intense light pulses from a femtosecond laser interacting with matter provide a unique ability to modify material properties on sub-micron scale in three dimensions. Inside bulk materials, the nonlinear nature of the interaction leads to highly localized, permanent modification of refractive index that can be well-controlled enabling fabrication of waveguides, photonic devices, periodic nanostructures and microfluidic channels in 3D. On surfaces, the interaction leads to material removal (ablation) enabling nano-structuring. In this presentation, I will discuss fundamental and applied aspects of interaction of intense femtosecond light pulses with dielectric materials (glasses and polymers).