Publications associées à Communications optiques en espace libre

Application of graphene-based nanostructures in dye-sensitized solar cells

Michael Graetzel, Jun Ho Yum, Ladislav Kavan

The paper reviews recent advances in the application of graphene and related materials, viz. graphene nanoplatelets (GNP), functionalized graphene sheets (FGS), graphene oxide (GO), and reduced graphene oxide (rGO) as electrode building materials in dye-se ...

Wiley-Blackwell2013

Localized and stationary dynamic gratings via stimulated Brillouin scattering with phase modulated pumps

Luc Thévenaz, Nikolay Primerov

A novel technique for the localization of stimulated Brillouin scattering (SBS) interaction is proposed, analyzed and demonstrated experimentally. The method relies on the phase modulation of two counter-propagating optical waves by a common pseudo-random ...

Optical Society of America2012

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

OLTP on Hardware Islands

Anastasia Ailamaki, Miguel Sérgio De Oliveira Branco, Pinar Tözün, Ippokratis Pandis, Danica Porobic

Modern hardware is abundantly parallel and increasingly heterogeneous. The numerous processing cores have non-uniform access latencies to the main memory and to the processor caches, which causes variability in the communication costs. Unfortunately, datab ...

2012

Low voltage vertical flaps arrays as optical modulating elements for reflective display and switchable gratings

Nico de Rooij, Wilfried Noell, Fabio Jutzi

A novel technology is presented for arrays of vertical flaps as optically modulating elements which are actuated electrostatically to horizontal position at low voltages of 30-50V. One application is a reflective display exhibiting a contrast ratio of 1:95 ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2012

Event-Driven Video Coding for Outdoor Wireless Monitoring Cameras

Martin Vetterli, Guillermo Barrenetxea Kobas, Zichong Chen

Reducing communication cost is crucial for outdoor wireless monitoring cameras which are constrained by limited energy budgets. From event detection point of view, traditional video coding schemes such as H.264 are inefficient as they ignore the "meaning" ...

2012

Broadcasting Private Messages Securely

Christina Fragouli, Suhas Diggavi, László Czap, Vinod Malathidevi Prabhakaran

Consider a source, Alice, broadcasting private messages to multiple receivers through a broadcast erasure channel; users send back to Alice public feedback that she causally uses to decide the coding strategy for her following transmissions. Recently, the ...

IEEE2012

Polarimetric X-band weather radar measurements in the tropics: radome and rain attenuation correction

Marc Schneebeli Zeugin

A polarimetric X-band radar has been deployed during one month (April 2011) for a field campaign in Fortaleza, Brazil, together with three additional laser disdrometers. The disdrometers are capable of measuring the raindrop size distributions (DSDs), henc ...

Copernicus Gesellschaft Mbh2012

Universal bounds on the scaling behavior of polar codes

Rüdiger Urbanke, Seyed Hamed Hassani, Ali Goli

We consider the problem of determining the tradeoff between the rate and the block-length of polar codes for a given block error probability when we use the successive cancellation decoder. We take the sum of the Bhattacharyya parameters as a proxy for the ...

2012

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Communications optiques en espace libre

Application of graphene-based nanostructures in dye-sensitized solar cells

Localized and stationary dynamic gratings via stimulated Brillouin scattering with phase modulated pumps

An Electrically-Driven GaAs Nanowire Surface Plasmon Source

OLTP on Hardware Islands

Low voltage vertical flaps arrays as optical modulating elements for reflective display and switchable gratings

Event-Driven Video Coding for Outdoor Wireless Monitoring Cameras

Broadcasting Private Messages Securely

Engineering Complex Systems for Health, Security and the Environment

Polarimetric X-band weather radar measurements in the tropics: radome and rain attenuation correction

Universal bounds on the scaling behavior of polar codes

Graph Chatbot

Chattez avec Graph Search

Low voltage vertical flaps arrays as optical modulating elements for reflective display and switchable gratings

OLTP on Hardware Islands

Localized and stationary dynamic gratings via stimulated Brillouin scattering with phase modulated pumps

Broadcasting Private Messages Securely

Application of graphene-based nanostructures in dye-sensitized solar cells

Event-Driven Video Coding for Outdoor Wireless Monitoring Cameras

Engineering Complex Systems for Health, Security and the Environment

An Electrically-Driven GaAs Nanowire Surface Plasmon Source

Polarimetric X-band weather radar measurements in the tropics: radome and rain attenuation correction

Universal bounds on the scaling behavior of polar codes