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Mapping local optical densities of states in silicon photonic structures with nanoscale electron spectroscopy
Mapping local optical densities silicon photonic structures nanoscale electron spectroscopy
2015/8/10
Relativistic electrons in a structured medium generate radiative losses such as Cherenkov and transition radiation that act as a virtual light source, coupling to the photonic densities of states. The...
Planar Lenses Based on Nanoscale Slit Arrays in a Metallic Film
Planar Lenses Nanoscale Slit Arrays Metallic Film
2015/8/10
We experimentally demonstrate planar lenses based on nanoscale slit arrays in a metallic film. Our lens structures consist of optically thick gold films with micron-size arrays of closely ...
Metal-dielectric-metal plasmonic waveguide devices for manipulating light at the nanoscale
Metal-dielectric-metal plasmonic waveguide devices nanoscale
2015/8/10
We review some of the recent advances in the development of subwavelength plasmonic devices for manipulating light at the nanoscale, drawing examples from our own work in metal-dielectric-metal (MDM)p...
Planar metallic;nanoscale slit lenses;angle compensation
Solar energy Nanophotonics photonic crystals
2015/8/10
We present theoretical considerations as well as detailed numerical design of absorber and emitter for Solar Thermophotovoltaics (STPV) applications. The absorber, consisting of an array of tungsten p...
Planar metallic nanoscale slit lenses for angle compensation
Planar metallic nanoscale slit lenses angle compensation
2015/8/10
We demonstrate numerically, using a modified total-field/scattered-field formalism, that metallic lenses, based on arrays of nanoscale slits with varying widths in a planar metallic ...
Propagating plasmonic mode in nanoscale apertures and its implications for extraordinary transmission
apertures aperture arrays extraordinary transmission Fano interference
2015/8/10
We studied the interaction of different pathways by which extraordinary transmission through nanoscale aperture arrays arises and obtained a complete physical picture that incorporates both propagati...
Enlarging the bandwidth of nanoscale propagating plasmonic modes in deep-subwavelength cylindrical holes
nanoscale propagating plasmonic modes deep-subwavelength cylindrical holes
2015/8/10
Subwavelength cylindrical holesin optically thick metallic films alwayssupport a propagating HE11 mode near the surface plasmon frequency, regardless of how small the holes are. For holes ᤙ...
Submicrometer All-Optical Digital Memory and Integration of Nanoscale Photonic Devices Without Isolators
Large-scale integration optical bistability optical isolators optical logic devices
2015/8/11
Submicrometer All-Optical Digital Memory and Integration of Nanoscale Photonic Devices Without Isolators.