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Reciprocal Metasurfaces for On-axis Reflective Optical Computing

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Distributed phase birefringence measurements based on polarization correlation in phase-sensitive optical time-domain reflectometers

Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Xin Lu

In this paper a technique to measure the distributed birefringence profile along optical fibers is proposed and experimentally validated. The method is based on the spectral correlation between two sets of orthogonally-polarized measurements acquired using ...

Optical Society of America2015

Internal optical forces in plasmonic nanostructures

Olivier Martin, Raziman Thottungal Valapu

We present a computational study of the internal optical forces arising in plasmonic gap antennas, dolmen structures and split rings. We find that very strong internal forces perpendicular to the propagation direction appear in these systems. These interna ...

Optical Soc Amer2015

Optical Society of America2015

Acoustic Metasurface

Hervé Lissek, Sami Driss Karkar, Seyyed Hussein Seyyed Esfahlani

Metasurfaces have gained fame for their ability to control the transmitted and reflected phase front of waves. Here, we introduce a reflector-type acoustic metasurface designed in such a way to control the phase front of reflected sound waves. The proposed ...

2015

Up-scalable method to amplify the diffraction efficiency of simple gratings

Olivier Martin, Martin Stalder

An innovative class of coupling gratings for efficiently redirecting light beams is described. They are based on symmetric binary gratings equipped with an asymmetric high refractive index coating. This kind of structure exhibits a grating blaze effect and ...

Optical Society of America2014

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

Experimental Evaluation of the Polarization Crosstalk When Soldering a Polarization-Maintaining Fiber Into a V-Grooved Substrate

José Javier Pancracio Ojeda Andara

The influence of stress on the polarization extinction ratio (PER) when solderjet-bumping a bow-tie polarization-maintaining fiber (PMF) to a V-grooved ceramic substrate is experimentally evaluated. Throughout this paper, the linear polarization of the cou ...

Institute of Electrical and Electronics Engineers2013

A Simple Reflectarray Cell with 1-bit Phase Control and Polarization Flexibility

Julien Perruisseau-Carrier, Tomislav Debogovic

In this work we present a simple reconfigurable reflectarray (RRA) unit cell general topology and implementation, which allows the independent control of the phase and polarization of the reflected electromagnetic wave. The 1-bit phase control (with 180 de ...

Ieee2013

Optical nanostructures have the potential to provide useful new functionalities, using materials and fabrication methods that are compatible with standard silicon-based processes. For example, it has been shown that a nanoscale grating coated with a metal ...

2012

High-brightness polarized light-emitting diodes

Elison de Nazareth Matioli

Light-emitting diodes are becoming the alternative for future general lighting applications, with huge energy savings compared to conventional light sources owing to their high efficiency and reliability. Polarized light sources would largely enhance the e ...

Nature Publishing Group2012