Results 81 to 90 of about 338,902 (299)

New Photonic System for Optical Packet Switching [PDF]

Journal of Systemics, Cybernetics and Informatics, 2003
Fast optical switching (ms timebase) is realized by using a RF frequency tone inserted in the optical packet that carries a digital payload. By using a highly selective RF filtering for optical packet header frequency recognition, we have obtained ...
F. Rudge Barbosa, A. Campos Sachs, M. Tosi Furtado   +2 more
doaj  

All-Optical Switching and Router via the Direct Quantum Control of Coupling between Cavity Modes

Physical Review X, 2013
In this work, we describe a scheme to execute all-optical control of the routing or switching of photonic information where, by optically controlling the internal quantum state of a individual scatterer coupled to two independent cavity modes, one can ...
Keyu Xia (夏可宇), Jason Twamley
doaj   +1 more source

Silicon Photonics towards Disaggregation of Resources in Data Centers

Applied Sciences, 2018
In this paper, we demonstrate two subsystems based on Silicon Photonics, towards meeting the network requirements imposed by disaggregation of resources in Data Centers.
Miltiadis Moralis-Pegios, Nikolaos Terzenidis, George Mourgias-Alexandris, Konstantinos Vyrsokinos   +3 more
doaj   +1 more source

Real‐World Performance of CSF Kappa Free Light Chains in the 2024 McDonald Criteria

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Kappa free light chains (KFLCs) in the cerebrospinal fluid (CSF) have a similar performance to CSF‐restricted oligoclonal bands (OCB) for multiple sclerosis (MS) diagnosis. To help with implementation, we set out to resolve several remaining uncertainties: (1) performance in a real‐world cohort and the 2024 McDonald criteria; (2 ...
Maya M. Leibowitz, Ryan Cooper, Stefania Kaninia, Kathryn I. Challis, Will Greenway, Maria Bonello, Mahmoud Elbahnasawi, Deborah T. Shode, Dominika Gajdasik, Victor Iliev, Alison M. E. Whitelegg, Ian Galea   +11 more
wiley   +1 more source

Ultrafast defect dynamics: A new approach to all optical broadband switching employing amorphous selenium thin films

AIP Advances, 2015
Optical switches offer higher switching speeds than electronics, however, in most cases utilizing the interband transitions of the active medium for switching. As a result, the signal suffers heavy losses. In this article, we demonstrate a simple and yet
Rituraj Sharma, Kiran Prasai, D. A. Drabold, K. V. Adarsh   +3 more
doaj   +1 more source

Digital electric field induced switching of plasmonic nanorods using an electro-optic fluid fiber

, 2017
We demonstrate the digital electric field induced switching of plasmonic nanorods between 1 and 0 orthogonal aligned states using an electro-optic fluid fiber component.
Araujo, Leonardo F., Carvalho, Isabel C. S., Etcheverry, Sebastian, Fontana, Jake, Margulis, Walter   +4 more
core   +1 more source

Single shot ultrafast all optical magnetization switching of ferromagnetic Co/Pt multilayers [PDF]

, 2017
In a number of recent experiments, it has been shown that femtosecond laser pulses can control magnetization on picosecond timescales, which is at least an order of magnitude faster compared to conventional magnetization dynamics.
Bokor, Jeffrey, Gorchon, Jon, Lambert, Charles-Henri, Pattabi, Akshay, Salahuddin, Sayeef, Wilson, Richard B., Yang, Yang   +6 more
core   +3 more sources

A Depolarizing Leak in Sodium Bicarbonate Cotransporter NBCe1 Causes Brain Edema

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives SLC4A4 encodes electrogenic sodium bicarbonate cotransporter NBCe1, prominently expressed in kidney and brain. Recessive loss‐of‐function variants in SLC4A4 cause proximal renal tubular acidosis, no brain edema. In the brain, NBCe1 is expressed by astrocytes, where it regulates pH and mediates astrocyte volume changes.
Quinty Bisseling, Mark D. Parker, Sven Kerst, Richard A. Pasternack, Jacob Tondreau, Marjolein Breur, Gemma M. van Rooijen‐van Leeuwen, Davide Tonduti, Ettore Salsano, Alejandra Darling, Joanna A. E. van Wijk, Susanna Törnroth‐Horsefield, Marianna Bugiani, Petra J. W. Pouwels, Quinten Waisfisz, Marjo S. van der Knaap, Rogier Min   +16 more
wiley   +1 more source

Controlled multiple spectral hole burning via a tripod-type atomic medium

New Journal of Physics
In limit of saturation spectroscopy, we theoretically study the spectral hole burning (SHB) in the absorption spectrum of a probe field through a tripod atomic system. The response function for the probe field is calculated in a Doppler-broadened medium.
Gul Tiaz, Haleema Sadia Qureshi, Shakir Ullah, Fazal Ghafoor   +3 more
doaj   +1 more source

Nanosecond channel-switching exact optical frequency synthesizer using an optical injection phase-locked loop (OIPLL) [PDF]

, 2004
Experimental results are reported on an optical frequency synthesizer for use in dynamic dense wavelength-division-multiplexing networks, based on a tuneable laser in an optical injection phase-locked loop for rapid wavelength locking.
Bayvel, P, Duser, M, Lovell, T, Puttnam, B, Renaud, CC, Seeds, AJ, Silva, CFC   +6 more
core   +1 more source