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Superlens

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Compound resonance-induced coupling effects in composite plasmonic metamaterials

Olivier Martin, Arash Farhang

We study a compound plasmonic system composed of a periodic Au grating array placed close to a thin Au film. The study is not limited to normal incidence and dispersion diagrams are computed for a broad variety of parameters. In addition to identifying loc ...

Optical Society of America2012

Coherent manipulation of free amino acids fluorescence

Christoph Peter Hauri

Coherent manipulation of molecular wavepackets in biomolecules might contribute to the quest towards label-free cellular imaging and protein identification. We report the use of optimally tailored UV laser pulses in pump-probe depletion experiments that se ...

2012

A Novel Image-based Tool to Reunite Children With Their Families After Disasters

Christos Marios Christoudias

Objectives Reuniting children with their families after a disaster poses unique challenges. The objective was to pilot test the ability of a novel image-based tool to assist a parent in identifying a picture of his or her children. Methods A previously dev ...

Wiley-Blackwell2012

Superoscillatory diffraction-free beams

Demetri Psaltis

It is theoretically shown that by superimposing diffraction-free solutions of the Helmholtz equation, one can construct localized diffraction-free beams that pass through predetermined points on subwavelength distances. These beams are based on the phenome ...

Optical Society of America2011

Subwavelength-size solid immersion lens

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

We report on the fabrication and characterization of nanoscale solid immersion lenses (nano-SILs) with sizes down to a subwavelength range. Submicrometer-scale cylinders fabricated by electron-beam lithography are thermally reflowed to form a spherical sha ...

2011

3D optical Yagi-Uda nanoantenna array

Klaus Kern

Future photonic circuits with the capability of high-speed data processing at optical frequencies will rely on the implementation of efficient emitters and detectors on the nanoscale. Towards this goal, bridging the size mismatch between optical radiation ...

2011

Multi-resonant metamaterials based on UT-shaped nano-aperture antennas

Hatice Altug, Arif Engin Cetin, Serap Aksu

We demonstrate a compact multi-resonant metamaterial structure based on integrated U- and T-shaped nano-aperture antennas. We investigate the physical origin of the multi-resonant behavior and determine the parameter dependence of the nano-aperture antenna ...

2011

Large mode splitting and lasing in optimally coupled photonic-crystal microcavities

Elyahou Kapon, Alok Rudra, Benjamin Dwir, Kirill Atlasov

Coupling of L-type photonic-crystal (PhC) cavities in a geometry that follows inherent cavity field distribution is exploited for demonstrating large mode splitting of up to similar to 10-20 nm (similar to 15-30 meV) near 1 mu m wavelength. This is much la ...

Optical Society of America2011

Inhibited emission of electromagnetic modes confined in subwavelength cavities

Romuald Houdré, Nicolas Le Thomas

We experimentally demonstrate the active inhibition of subwavelength confined cavity modes emission and quality factor enhancement by controlling the cavity optical surrounding. The intrinsic radiation angular spectrum of modes confined in planar photonics ...

2011

Digital Reverse Propagation in Focusing Kerr Media

Demetri Psaltis, Alexandre Goy

We report experimental image reverse propagation in focusing Kerr media. These results are compared with a linear Zernike filter operation. A method for the measurement of the nonlinear coefficient is derived from these results. (C) 2010 Optical Society of ...

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