Layered photonic crystals
A three dimensional photonic crystal and layer-by-layer
processes of fabricating the photonic crystal. A substrate is
exposed to a plurality of first microspheres made of a first
material, the first material being of a type that will bond to the
templated substrate and form a self-passivated layer of first
microspheres to produce a first layer. The first layer is exposed
to a plurality of second microspheres made of a second material,
the second material being of a type that will bond to the first
layer and form a self-passivated layer of second microspheres. This
layering of alternating first and second microspheres can be
repeated as desired to build a three dimensional photonic crystal
of desired geometry. Charged polymers such as polyelectrolyte
coatings can be used to create the bonds.
Lewis, J., Goodwin-Johansson, SH., Stoner, B., Grego, S., & Dausch, D. (2005). IPC No. U.S. Layered photonic crystals. (Patent No. 6924921).