Directory
Pr. Koen CLAYS
Leuven University
| When |
Mar 15, 2017 à 10:30 AM |
|---|---|
| Where |
CBP LR6 main lecture room |
| Contact |
Chantal Andraud |
Colloidal Photonic Crystals: A convenient bottom-up platform for
photonic bandgap engineering
Photonic crystals can be considered the optical analogues of electronic semiconductor materials. Their photonic bandgap can be engineered similar to impurity doping. Colloidal nanoparticles allow for a convenient three-dimensional photonic crystal platform. We have demonstrated different approaches towards bandgap engineering, enhanced energy transfer and lasing in such self-assembled photonic crystals. Our lecture will focus on the inexpensive bottom-up approach to 3D photonic crystals offered from a physical chemistry viewpoint (in contrast to the top-down physical approach offered by lithography and etching).