Publications related to Gradient-index optics

Towards quantifying effects of refractive index mismatch on PIV results

Refractive index matched particle image velocimetry (RIM-PIV) is an elegant method to measure velocity fields around complex geometries and in difficultly accessible areas. The accuracy of RIM-PIV is strongly affected by the quality of refractive index mat ...

2015

Optical and structural analysis of sol-gel derived Cu-Co-Mn-Si oxides for black selective solar nanocomposite multilayered coatings

Andreas Schueler, Aïcha Hessler-Wyser, Marina Aymara González Lazo, Pierre Loesch, Martin Python, Olivia Valérie Charlotte Bouvard, Martin Joly, Yannik Antonetti, Thomas Gascou

In this paper, we report the preparation of the precursor solutions for the deposition of Cu-Co-Mn-Si oxides by a sot-gel method in order to produce black selective coatings for CSP receiver tubes. Their optical properties were investigated by means of spe ...

Elsevier2015

Raman-based distributed optical fiber temperature sensors: industrial applications and future developments

Marcelo Alfonso Soto Hernandez

This book chapter describes Raman Based Distributed Optical Fiber Sensors and their main industrial applications. In particular, after a brief introduction on the basic physical mechanisms, and a theoretical description of distributed optical fiber sensors ...

World Scientific Publishing Co. Pte. Ltd2014

Optical trapping and binding of particles in an optofluidic stable Fabry-Perot resonator with single-sided injection

Maurine Malak Karam Awadallah

In this article, microparticles are manipulated inside an optofluidic Fabry-Perot cylindrical cavity embedding a fluidic capillary tube, taking advantage of field enhancement and multiple reflections within the optically-resonant cavity. This enables trapp ...

Royal Society of Chemistry2014

Optical and morphological characterisation of low refractive index materials for coatings on solar collector glazing

Jean-Louis Scartezzini, Andreas Schueler, Marie Schaer, Martin Joly, Stefan Mertin, Estelle De Chambrier, Virginie Hody-Le Caër

Nanostructured coatings based on the elements Si, O, Mg, and F have been deposited as thin films by solegel dip-coating in a particle-free atmosphere. The refractive index of the prepared SiO2 and quaternary MgeFeSieO thin films has been determined from sp ...

Pergamon-Elsevier Science Ltd2013

LHC Optics with Crab-Waist Collisions and Local Chromatic Correction

Stephan Russenschuck, José Luis Abelleira Fernández, Frank Zimmermann

We report the status of the optics design for a local chromatic correction with extremely flat beams at the LHC. Together with a Large Piwinski angle, this optics opens up the possibility of crab-waist collisions at the LHC, for which a new layout of the L ...

2013

Photonic Crystal Biosensor Based on Optical Surface Waves

Giovanni Dietler, Tatyana Karakouz, Chiara Vicario

A label-free biosensor device based on registration of photonic crystal surface waves is described. Angular interrogation of the optical surface wave resonance is used to detect changes in the thickness of an adsorbed layer, while an additional simultaneou ...

Mdpi Ag2013

Polymer based single mode optical waveguide for spectroscopy applications

Hans Peter Herzig, Irène Antoinette Philipoussis, Toralf Scharf, Maurine Malak Karam Awadallah

In this work, we present for the first time, two dimensional low loss single mode optical waveguides fabricated with EPO materials. The waveguide geometry has a rectangular shape and it is buried between two EPOCLAD layers. Its refractive index distributio ...

Spie-Int Soc Optical Engineering2013

Multiple contrast metrics from the measurements of a digital confocal microscope

Michaël Unser, Demetri Psaltis, Alexandre Goy

We describe various methods to process the data collected with a digital confocal microscope (DCM) in order to get more information than what we could get from a conventional confocal system. Different metrics can be extracted from the data collected with ...

Optical Soc Amer2013

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