Publications associées à Modulateur acousto-optique

Nanoparticle-Based Metamaterials as Multiband Plasmonic Resonator Antennas

Hatice Altug, Arif Engin Cetin, Serap Aksu

Plasmonic metamaterials based on metal-dielectric nanostructures exhibit unique optical properties such as high near-field enhancement, negative refractive indexing, and optical cloaking. In this paper, we present a plasmonic multiband metamaterial based o ...

2012

Talbot images of wavelength-scale amplitude gratings

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

By means of experiment and simulation, we achieve unprecedented insights into the formation of Talbot images to be observed in transmission for light diffracted at wavelength-scale amplitude gratings. Emphasis is put on disclosing the impact and the interp ...

Optical Society of America2012

Rating the performance of a Brillouin distributed fiber sensor

Luc Thévenaz, Marcelo Alfonso Soto Hernandez

The effect of the characteristics of a generic distributed fiber sensor based on stimulated Brillouin scattering on the amplitude of the response is analyzed and a relation between the measurement noise on the time traces and the error on the determination ...

Spie-Int Soc Optical Engineering2012

Tailoring interference and nonlinear manipulation of femtosecond x-rays

Renske Marjan van der Veen

We present ultrafast x-ray diffraction (UXRD) experiments on different photoexcited oxide superlattices. All data are successfully simulated by dynamical x-ray diffraction calculations based on a microscopic model, that accounts for the linear response of ...

Institute of Physics (IoP) and Deutsche Physikalische Gesellschaft2012

Diffraction and absorption enhancement from textured back reflectors of thin film solar cells

Christophe Ballif, Franz-Josef Haug, Ali Naqavi

We study light scattering and absorption in thin film solar cells, using a model system of a sinusoidally textured silver reflector and dielectric layers of ZnO and amorphous silicon. Experimental results are compared to a theoretical model based on a Rayl ...

American Institute of Physics2012

Low energy impact damage monitoring of composites using dynamic strain signals from FBG sensors - Part I: Impact detection and localization

John Botsis, Joël Cugnoni, Jeannot Frieden

Fiber reinforced composite materials risk to suffer from subsurface, barely visible, damage induced by transverse relatively low energy impacts. This two-paper series presents a method for the localization of an impact and identification of an eventual dam ...

2012

Measuring amplitude and phase of light emerging from microstructures with HRIM

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

Ultra high-resolution measurements of amplitude and phase fields emerging from fine period amplitude gratings are presented and discussed. In the axial direction periodically repeated features are found, whose origins are the Talbot effect within the Fresn ...

SPIE Digital Library2011

High spatial and spectral resolution long-range sensing using Brillouin echoes

Luc Thévenaz, Stella Foaleng Mafang

High spatial (~cm) and spectral (~MHz) resolution Brillouin sensing is realized with enhanced signal to noise ratio using a pre-activated acoustic field and an optical phase control over the interrogating pulse. Pre-activation of the acoustic field preserv ...

2010

An RCWA Analysis of Solar Cell Back Reflectors: Comparison between Modelling and Experiment

Christophe Ballif, Hans Peter Herzig, Franz-Josef Haug, Toralf Scharf, Karin Söderström, Vincent Paeder, Ali Naqavi

We present a comparison between spectrally-resolved reflection measurements of gratings and theoretical predictions from RCWA approach. Diffraction intensities vary significantly with polarization, and surface plasmon absorption is observed around the onse ...

2010

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Modulateur acousto-optique

Nanoparticle-Based Metamaterials as Multiband Plasmonic Resonator Antennas

Talbot images of wavelength-scale amplitude gratings

Rating the performance of a Brillouin distributed fiber sensor

Tailoring interference and nonlinear manipulation of femtosecond x-rays

Diffraction and absorption enhancement from textured back reflectors of thin film solar cells

Low energy impact damage monitoring of composites using dynamic strain signals from FBG sensors - Part I: Impact detection and localization

Brillouin Echoes for Advanced Distributed Sensing in Optical Fibres

Measuring amplitude and phase of light emerging from microstructures with HRIM

High spatial and spectral resolution long-range sensing using Brillouin echoes

An RCWA Analysis of Solar Cell Back Reflectors: Comparison between Modelling and Experiment

Graph Chatbot

Chattez avec Graph Search

Talbot images of wavelength-scale amplitude gratings

Nanoparticle-Based Metamaterials as Multiband Plasmonic Resonator Antennas

Tailoring interference and nonlinear manipulation of femtosecond x-rays

Rating the performance of a Brillouin distributed fiber sensor

Low energy impact damage monitoring of composites using dynamic strain signals from FBG sensors - Part I: Impact detection and localization

Brillouin Echoes for Advanced Distributed Sensing in Optical Fibres

Diffraction and absorption enhancement from textured back reflectors of thin film solar cells

Measuring amplitude and phase of light emerging from microstructures with HRIM

High spatial and spectral resolution long-range sensing using Brillouin echoes

An RCWA Analysis of Solar Cell Back Reflectors: Comparison between Modelling and Experiment