SPIE Senior Member Andrea Alù and his research group at the University of Texas in Austin say they are a step closer to creating a three-dimensional cloak that would render some objects invisible.
An article published recently on CNET said that the group reports they have hidden a cylinder from microwaves, demonstrating cloaking of an object in free space, rather than a two-dimensional image. The group has not been able to scatter visible light, but it expects that cloaking small objects is possible.
Alù has published numerous papers on related topics in the SPIE Digital Library, and was author of the paper "Enhanced nonlinear effects in metamaterials and plasmonic materials" presented at SPIE Photonics West in January.
Alù is the winner of the 2012 SPIE Early Career Achievement Award in recognition of his work in optical metamaterials and plasmonic phenomena.