Results 1 to 10 of about 2,445,100 (248)

Four-channel graphene optical receiver. [PDF]

open access: yesNanophotonics
Abstract Silicon photonics with the advantages of low power consumption and low fabrication cost is a crucial technology for facilitating high-capacity optical communications and interconnects. The graphene photodetectors (GPDs) featuring broadband operation, high speed, and low integration cost can be good additions to the SiGe ...
Yu L   +10 more
europepmc   +4 more sources

Four-channel self-compensating single-slope ADC for space environments [PDF]

open access: yes, 2014
A multichannel high-resolution single-slope analogue-to-digital converter (SS ADC) is presented that automatically compensates for process, voltage and temperature variations, as well as for radiation effects, in order to be used in extreme environmental
Arias Drake, Alberto   +10 more
core   +1 more source

Measurement of the t-channel single top quark production cross section [PDF]

open access: yes, 2009
The D0 collaboration reports direct evidence for electroweak production of single top quarks through the t-channel exchange of a virtual W boson. This is the first analysis to isolate an individual single top quark production channel.
Abazov, V. M.   +488 more
core   +10 more sources

An optical readout for a fibre tracker [PDF]

open access: yes, 1997
The performance of 16 and 64 channel photomultipliers coupled to scintillating fibres has been tested. The devices are sensitive to single photoelectrons, show little gain losses for magnetic fields up to 100 Gauss and have moderate optical cross-talk ...
Enkelmann, M.   +3 more
core   +3 more sources

Four-channeled aortic dissection and rupture [PDF]

open access: yesEuropean Journal of Cardio-Thoracic Surgery, 1997
A four-channeled aortic dissection is quite rare, which is a highly life-threatening situation predisposing to aortic rupture. We report a successful management of a four-channeled aortic dissection and an aortic rupture in a 59-year-old woman with Marfan's syndrome 11 years after an initial Bentall procedure for DeBakey type I dissection.
K, Yagyu   +3 more
openaire   +2 more sources

RoboPol: a four-channel optical imaging polarimeter [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2019
ABSTRACT We present the design and performance of RoboPol, a four-channel optical polarimeter operating at the Skinakas Observatory in Crete, Greece. RoboPol is capable of measuring both relative linear Stokes parameters q and u (and the total intensity I) in one sky exposure.
J A Zensus   +32 more
openaire   +7 more sources

On Constant Gaps for the Two-way Gaussian Interference Channel [PDF]

open access: yes, 2012
We introduce the two-way Gaussian interference channel in which there are four nodes with four independent messages: two-messages to be transmitted over a Gaussian interference channel in the $\rightarrow$ direction, simultaneously with two-messages to ...
Cheng, Zhiyu, Devroye, Natasha
core   +1 more source

Coarse wavelength division multiplexer on silicon-on-insulator for 100 GbE [PDF]

open access: yes, 2015
A four-channel cascaded MZl based de-multiplexer at O-band with coarse channel spacing of 20 nm and band flatness of 13 nm is demonstrated on silicon-on-insulator.
Absil, P   +4 more
core   +2 more sources

Four-channel parity-time symmetry

open access: yesEurophysics Letters, 2022
Abstract In this letter, we propose a general scheme for four-channel parity-time symmetry. We theoretically demonstrate how to achieve novel features via exploiting the parity-time symmetry for four-channel coupled-mode equations and study the spontaneous symmetry breaking manifold, separating the parity-time symmetric and parity-time ...
Ege Özgün, Ekmel Ozbay, Ibrahim Ozdur
openaire   +4 more sources

Impact of 4D channel distribution on the achievable rates in coherent optical communication experiments [PDF]

open access: yes, 2016
We experimentally investigate mutual information and generalized mutual information for coherent optical transmission systems. The impact of the assumed channel distribution on the achievable rate is investigated for distributions in up to four ...
Agrell, Erik   +5 more
core   +2 more sources

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