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Manipulation of Bloch surface waves: from subwavelength focusing to nondiffracting beam

Publications associées (73)

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A new strategy for improving fluorescent immunoassays using photonic crystals

Hans Peter Herzig, Elsie Barakat

The most widely used substrates for fluorescent immunoassay are based on transparent materials such as glass or plastic with almost no optical functionality. Very recently, optical nanostructures made of metal on dielectrics have been proposed to perform p ...

2014

Resonance Light Scattering in Dye-Aggregates Forming in Dewetting Droplets

Roland Hany, Jakob Heier, Gian-Luca Bona, Raffaele Mezzenga

Small organic semiconducting molecules assembling into supramolecular J- and H- aggregates have attracted much attention due to outstanding optoelectronic properties. However, their easy and reproducible fabrication is not yet sufficiently developed for in ...

American Chemical Society2014

Focusing and Extraction of Light mediated by Bloch Surface Waves

Hans Peter Herzig, Elsie Barakat

The control of emission from localized light sources is an objective of outstanding relevance in nanophotonics. In a recent past, a large number of metallic nanostructures has been proposed to this end, wherein plasmonic modes are exploited as energy carri ...

Nature Publishing Group2014

Near-field imaging

Libo Yu

Bloch surface waves (BSWs) are surface electromagnetic waves excited at the interface between a truncated periodic dielectric multilayer and a surrounding medium. This particular solution to the Maxwell equations in stratified media has been known since th ...

EPFL2013

Blue surface plasmon propagation along thin gold film-gas interface and its use for sensitive nitrogen dioxide detection

Giovanni Dietler

We demonstrate effective surface plasmon propagation along thin gold film in a blue spectral range: the measured 0.6 degrees angular width of the plasmon excitation peak corresponds to the propagation length around 7 mu m. For this end, we prepared a speci ...

Elsevier2013

Near-field study of dielectric surface lens

Hans Peter Herzig, Vincent Paeder, Elsie Barakat, Libo Yu

In this work, we design, fabricate and experimentally characterize a surface structured lens within an ultra thin polymer layer deposited on a Bloch Surface Waves (BSWs) suspended dielectric platform. The near-field (SNOM) measurements demonstrate that the ...

2013

Spatially Dispersive Graphene Single and Parallel Plate Waveguides: Analysis and Circuit Model

Julien Perruisseau-Carrier, Juan Sebastian Gomez Diaz

The propagation of surface waves along spatially dispersive graphene-based 2-D waveguides is investigated in detail. Graphene is characterized using a full-k(rho) conductivity model under the relaxation-time approximation, which allows to obtain analytical ...

Institute of Electrical and Electronics Engineers2013

Opto-acoustic coupling and Brillouin phenomena in microstructure optical fibers

Luc Thévenaz, Stella Foaleng Mafang, Duc Minh Nguyen

Like photonic crystals have revolutionized the way of manipulating optical waves at the sub-micron scale, phononic crystals have more recently played similar decisive role for sound waves, or more generally elastic waves. Then, the idea of coupling light a ...

IEEE2012

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

Uncoupled photonic band gaps

We theoretically investigated the symmetry properties of the modes in two-dimensional square lattice photonic crystals in order to study phenomena that would enable new frontiers in the applications of photonic crystals. Using group theory, symmetry analys ...

Elsevier Science Bv2012