title: Single-photon tunneling via localized surface plasmons.
abstract: Strong evidence of a single-photon tunneling effect, a direct analog of single-electron tunneling, has been obtained in the measurements of light tunneling through individual subwavelength pinholes in a gold film covered with a layer of polydiacetylene. The transmission of some pinholes reached saturation because of the optical nonlinearity of polydiacetylene at a very low light intensity of a few thousand photons per second. This result is explained theoretically in terms of a "photon blockade," similar to the Coulomb blockade phenomenon observed in single-electron tunneling experiments. Single-photon tunneling may find applications in the fields of quantum communication and information processing.
authors: Electrical and Computer Engineering Department, University of Maryland, College Park, MD 20742, USA.
authors: I I
authors: II
authors: Smolyaninov
authors: A V
authors: AV
authors: Zayats
authors: A
authors: A
authors: Gungor
authors: C C
authors: CC
authors: Davis