title: Imaging with subwavelength resolution by a generalized superlens at infrared wavelengths.
abstract: We demonstrate experimentally negative refraction by a photonic crystal prism and imaging of a point source by a photonic crystal slab at 1.5 microm wavelength. The photonic crystal structures were nanofabricated in a InGaAsP/InP heterostructure platform, and optical characterization was performed using a near-field scanning optical microscope. By designing a suitable lens surface termination, an image spot size of 0.12lambda2 was achieved, demonstrating superlens imaging with subwavelength resolution well below Abbe's diffraction limit (0.5lambda2).
authors: Electronic Materials Research Institute, Department of Physics, Northeastern University, Boston, MA 02115, USA.
authors: B D F
authors: BD
authors: Casse
authors: W T
authors: WT
authors: Lu
authors: R K
authors: RK
authors: Banyal
authors: Y J
authors: YJ
authors: Huang
authors: S
authors: S
authors: Selvarasah
authors: M R
authors: MR
authors: Dokmeci
authors: C H
authors: CH
authors: Perry
authors: S
authors: S
authors: Sridhar