Event

Physics Department seminar: Ultrafast photonics – nanoscale manipulation of materials

Tuesday, March 7, 2017
3:30 p.m.
Room 5345, Herzberg Laboratories

Speaker: Dr. Ravi Bhardwaj, University of Ottawa
Date: March 7, 2017
Time: 3:30 p.m.
Location: Room 5345, Herzberg Laboratories

Ultrafast photonics is enabled by highly nonlinear interaction of intense femtosecond light pulses with matter. It allows fabrication of novel photonic devices and sensors by controlled manipulation of material properties on nanoscale in three dimensions. Three applications of ultrafast laser processing of materials will be discussed. (1) Ultra-high density 3D optical data storage in common inexpensive plastics with a storage capacity that is ten times higher than a standard Blu-ray disc.  (2) Selective cell patterning in biocompatible polymers by altering the wetting properties of its surface. (3) Fabrication of nanostructures in silicon using non-gaussian beams and the role of transient plasmonics..