"Slinky" Lens Could See Cancer and Other Tiny Objects

Looking like a miniature Slinky, a new lens can manipulate and resolve light in ways impossible for traditional lenses. Researchers say this "hyperlens" may help detect early-stage cancer and identify single molecule sequences.  This "Slinky" hyperlens measures a few micrometers across. The light-colored, grainy layers are made of gold and the darker, smoother layers are made of a transparent thermoplastic, PMMA. The two slits in the gold at the bottom of the arch create a 250-nanometer-wide ob...