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Subwavelength Focusing of Bloch Surface Waves

Publications associées (87)

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Multi-Band Surface Enhanced Infrared Absorption Spectroscopy of Molecular Monolayers

Hatice Altug

We develop concepts for engineering multi-resonant infrared plasmonic antennas. We utilize these antennas in conjunction with a perfect absorber geometry to simultaneously enhance mid-infrared vibrational resonances separated by 3 mu m in in monolayer poly ...

IEEE2013

Subwavelength Metallic Structures for Sensing

Qing Tan

Following rapid developments in biotechnology and medicine, optical sensing promises to be extremely important in various applications such as drug discovery, environmental monitoring, etc. Refractive index (RI) based optical sensing is straightforward to ...

EPFL2012

Fano Resonances in Plasmonic Nanostructures

Benjamin Gallinet

Surface plasmons are able to generate extremely strong and confined optical fields at a deep-subwavelength scale, far beyond the diffraction limit, and now play a central role in nanosciences. A proper combination of plasmonic nanostructures can support Fa ...

EPFL2012

An Electrically-Driven GaAs Nanowire Surface Plasmon Source

Carlo Colombo

Over the past decade, the properties of plasmonic waveguides have extensively been studied as key elements in important applications that include biosensors, optical communication systems, quantum plasmonics, plasmonic logic, and quantum-cascade lasers. Wh ...

American Chemical Society2012

Field-effect active plasmonics for ultracompact electro-optic switching

Hatice Altug, Arif Engin Cetin, Shyamsunder Erramilli

Merging of electronics and photonics at subwavelength dimensions could potentially allow development of ultracompact electro-optic modulators and active optical interconnects. Here, we introduce a field-effect active plasmonic modulator where the metallic ...

2012

Simulation of complex plasmonic circuits including bends

Olivier Martin, Theo Lasser, Claudio Dellagiacoma

Using a finite-element, full-wave modeling approach, we present a flexible method of analyzing and simulating dielectric and plasmonic waveguide structures as well as their mode coupling. This method is applied to an integrated plasmonic circuit where a st ...

Optical Society of America2011

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

Electromagnetic modes of a disordered photonic crystal

Vincenzo Savona

We present a systematic numerical approach to compute the eigenmodes and the related eigenfrequencies of a disordered photonic crystal, characterized by small fluctuations of the otherwise periodic dielectric profile. The field eigenmodes are expanded on t ...

2011

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