Results 131 to 140 of about 491,503 (425)

Asymmetric Transmission and Diffraction Engineering in Ultrathin media via Coupled Metasurfaces

open access: yesAdvanced Optical Materials, EarlyView.
Grating‐insulator‐grating coupled crosstalking metasurfaces hosted on a silicon nitride membrane platform for asymmetric control of the diffraction pattern and asymmetric transmission. It is shown that exploiting the interferences of higher diffraction orders between the two metasurfaces and engineering the resulting modes enables AT in such ...
Abbas Sheikh Ansari   +3 more
wiley   +1 more source

Telecommunication [1935]

open access: yesTelecommunications Journal of Australia, 2010
Abstract not available.
openaire   +2 more sources

Robustness Comparison of 15 Real Telecommunication Networks: Structural and Centrality Measurements

open access: yesJournal of Network and Systems Management, 2017
Multiple failures can have catastrophic consequences on the normal operation of telecommunication networks. In this sense, guaranteeing network robustness to avoid users and services being disconnected is essential.
D. F. Rueda, E. Calle, J. Marzo
semanticscholar   +1 more source

Curcuminoid Derivatives with a Donor‐Acceptor‐Donor Architecture: an Outstanding Platform for Highly‐Efficient Near‐Infrared Electroluminescence and Amplified Spontaneous Emission

open access: yesAdvanced Optical Materials, EarlyView.
Curcuminoid boron difluoride dyes containing triphenylamine units are prepared and their photophysical and electrochemical properties are investigated. These new light‐emitting dyes are used in organic light‐emitting diodes (OLEDs) emitting at 800 nm with 1% external quantum efficiency, and show low threshold amplified spontaneous emission in thin ...
Anthony D'Aléo   +11 more
wiley   +1 more source

Common Metrics for Analyzing, Developing and Managing Telecommunication Networks [PDF]

open access: yesarXiv, 2017
The metrics play increasingly fundamental role in the design, development, deployment and operation of telecommunication systems. Despite their importance, the studies of metrics are usually limited to a narrow area or a well-defined objective. Our study aims to more broadly survey the metrics that are commonly used for analyzing, developing and ...
arxiv  

Liquid-nitrogen cooled, free-running single-photon sensitive detector at telecommunication wavelengths

open access: yes, 2015
The measurement of light characteristics at the single- and few photon level plays a key role in many quantum optics applications. Often photodetection is preceded with the transmission of quantum light over long distances in optical fibers with their ...
Covi, M.   +6 more
core   +1 more source

Telecommunications turmoil?

open access: yesTelecommunications Journal of Australia, 2007
No description provided Copyright 2007 Ross Kelso. No part of this article may be reproduced by any means without the written consent of the publisher.
openaire   +2 more sources

Detecting telecommunication fraud by understanding the contents of a call

open access: yesCybersecurity, 2018
Telecommunication fraud has continuously been causing severe financial loss to telecommunication customers in China for several years. Traditional approaches to detect telecommunication frauds usually rely on constructing a blacklist of fraud telephone ...
Qianqian Zhao   +4 more
semanticscholar   +1 more source

Demonstration of a Graphene Adjustable‐Barriers Phototransistor with Tunable Ultra‐High Responsivity

open access: yesAdvanced Optical Materials, EarlyView.
A novel graphene‐based phototransistor with a tunable ultra‐high responsivity of 1.7 x 107 AW−1 has been demonstrated. Due to the selected material combination of amorphous silicon, graphene and n‐germanium, the device is potentially capable of dual‐band detection in the VIS‐IR range.
Carsten Strobel   +5 more
wiley   +1 more source

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