Results 81 to 90 of about 592,324 (293)

Effect of loss on multiplexed single-photon sources

New Journal of Physics, 2015
An on-demand single-photon source is a key requirement for scaling many optical quantum technologies. A promising approach to realize an on-demand single-photon source is to multiplex an array of heralded single-photon sources using an active optical ...
Damien Bonneau, Gabriel J Mendoza, Jeremy L O’Brien, Mark G Thompson   +3 more
doaj   +1 more source

Thalamo‐Lesional Connectivity Signatures of Bilateral Tonic–Clonic Seizures in Focal Cortical Dysplasia‐Related Epilepsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Focal cortical dysplasia (FCD) is the most common etiology of drug‐resistant epilepsy in children. Focal to bilateral tonic–clonic seizures (FBTCS) mark a high risk of drug‐resistant epilepsy and involve thalamocortical circuitry in their generation and propagation.
Hua Xie, Xiaotong Li, Venkata Sita Priyanka Illapani, Leigh N. Sepeta, Jason Schroeder, Chima O. Oluigbo, Madison M. Berl, William D. Gaillard, Nathan T. Cohen   +8 more
wiley   +1 more source

Nonlinear optical thresholding in a 4-Channel OCDMA system via two-photon absorption [PDF]

, 2009
We demonstrate the use of a Two-Photon Absorption based detector in an OCDMA system.
K. J. Dexter, Petropoulos, P., Richardson, D.J., Dexter, Karl J., Reid, Douglas A., Reid, D.A., Barry, Liam P., Dexter, K.J., D. J. Richardson, Barry, L.P., D. A. Reid, L. P. Barry, P. Petropoulos   +12 more
core   +3 more sources

Pure spin current generation with photogalvanic effect in graphene interconnect junctions

Nanophotonics, 2021
We investigate the photovoltaic behaviors of magnetic graphene interconnect junctions, which are constructed by zigzag graphene nanoribbons (ZGNRs), with the aim to produce pure spin current by photogalvanic effect (PGE).
Zhou Yan-Hong, Yu Shaohui, Li Yuejun, Luo Xin, Zheng Xiaohong, Zhang Lei   +5 more
doaj   +1 more source

Natural Frequencies of Levodopa‐Induced Dyskinesia in Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Abnormal involuntary movements, known as dyskinesias, are common complications of levodopa treatment in patients with Parkinson's disease and can significantly impair quality of life. The underlying pathophysiology remains unclear, and current therapeutic options are limited.
Ioannis U. Isaias, Federica Avantaggiato, Gianni Pezzoli, Andrea Canessa   +3 more
wiley   +1 more source

Effective photon-photon interaction in a two-dimensional “photon fluid” [PDF]

Physical Review A, 2004
We formulate an effective theory for the atom-mediated photon-photon interactions in a two-dimensional ``photon fluid'' confined in a Fabry-Perot resonator. With the atoms modelled by a collection of anharmonic Lorentz oscillators, the effective interaction is evaluated to second order in the coupling constant (the anharmonicity parameter).
Chiao, R. Y., Hansson, T. H., Leinaas, J. M., Viefers, S.   +3 more
openaire   +2 more sources

Quantum key distribution using quantum dot single-photon emitting diodes in the red and near infrared spectral range [PDF]

, 2012
We report on in-lab free space quantum key distribution (QKD) experiments over 40 cm distance using highly efficient electrically driven quantum dot single-photon sources emitting in the red as well as near-infrared spectral range.
Heindel, Tobias, Eichfelder, Marcus, Hargart, F., Michler, P., Eichfelder, M., Rossbach, R., Kessler, C., Rau, Markus, Weinfurter, Harald, Reitzenstein, S., Höfling, Sven, Schneider, C., Lermer, Matthias, Nauerth, Sebastian, Rossbach, Robert, Fuerst, M., Forchel, A., Forchel, Alfred, Reitzenstein, Stephan, Weinfurter, H., Kessler, Christian A., Schulz, W., Weier, Henning, Fuerst, Martin, Hoefling, S., Rau, M., Schulz, Wolfgang-Michael, Michler, Peter, Nauerth, S., Jetter, M., Schneider, Christian, Jetter, Michael, Lermer, M., Weier, H., Heindel, T., Hargart, Fabian, Kamp, Martin, Kamp, M.   +37 more
core   +1 more source

A Practical Noise2Noise Denoising Pipeline for High‐Throughput Raman Spectroscopy

Advanced Engineering Materials, EarlyView.
A lightweight and reproducible denoising pipeline for high‐throughput Raman spectroscopy is introduced, based on a 1D convolutional autoencoder trained with a Noise2Noise strategy. Using only repeated short‐exposure acquisitions, the method suppresses stochastic noise without reference spectra, enabling reliable spectral reconstruction while preserving
David Martin‐Calle, Cesar Alvarez‐Llamas, Vincent Motto‐Ros, Christophe Dujardin, Jérémie Margueritat, David Rodney   +5 more
wiley   +1 more source

Research Photon Energy Spectrum of Medical Linear Accelerator by Monte Carlo Method

Zhongguo yiliao qixie zazhi
ObjectiveThe distribution of the photon energy spectrum in isocenter plane of the medical linear accelerator and the influence of secondary collimator on the photon energy spectrum are studied. Methods Use the BEAMnrc program to simulate the transmission
Yun XU, Yu ZHAO, Zikang LI, Junxiang WU
doaj   +1 more source

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

Advanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali, Magali Gregoire, Matys Guyard, Tatiana Itina, David Grojo, Pol Sopeña   +5 more
wiley   +1 more source