New publication:
Swellable Surface-Attached Polymer Microlenses with Tunable
Focal Length
A new publication from CPI will soon appear in Advanced Materials..
Christian Dorrer developed a new and simple strategy for the preparation of microlens arrays with tunable focal length. The microlenses swell if exposed to solvents which allows the adjustment of the focal length. A simple needle printer is used for the fabrication of the microlenses on chemically micropatterned surfaces. Using a photochemical process the polymers are then crosslinked and chemically anchored to the substrate. The resulting surface-attached microlenses can then be swollen when exposed to solvent vapor; they remain unaged after multiple swelling–drying cycles.
The article is currently available from the Advanced Materials website but will soon appear in the printed version.

