Results 81 to 90 of about 63,682 (291)
Photon-Pair Sources Based on Intermodal Four-Wave Mixing in Few-Mode Fibers
Fibers, 2018 Four-wave mixing in optical fibers has been proven to have many applications within processing of classical optical signals. In addition, recent developments in multimode fibers have made it possible to achieve the necessary phase-matching for efficient ...
Karsten Rottwitt +2 more
doaj +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Introduction Progressive Supranuclear Palsy (PSP) is a neurodegenerative ‘tauopathy’ with predominating pathology in the basal ganglia and midbrain. Caudal tau spread frequently implicates the cerebellum; however, the pattern of atrophy remains equivocal.
Chloe Spiegel +8 more
wiley +1 more source
A Preliminary Analysis of Spin in Few-Mode Optical Fibers
, 2013 The effect that spin has on modal dispersion of few-mode fibers is qualitatively studied. The analysis shows that spin may indeed reduce modal dispersion within the LP1,1 manifold, although reduction may be not as effective as in single-mode fibers ...
PALMIERI, LUCA +3 more
core +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background and Objectives Multiple sclerosis (MS) exhibits racially disparate rates of disease progression. Black people with MS (B‐PwMS) experience a more severe disease course than non‐Hispanic White people with MS (NHW‐PwMS). Here we investigated structural and functional connectivity as well as structure–function decoupling in the ...
Emilio Cipriano +11 more
wiley +1 more source
Inverse scattering designs of dispersion-engineered single-mode planar waveguides
We use an inverse-scattering (IS) approach to design single-mode waveguides with controlled linear and higher-order dispersion. The technique is based on a numerical solution to the Gelfand-Levitan-Marchenko integral equation, for the inversion of ...
Poletti, F., May, A.R., Zervas, M.N.
core +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Intravenous thrombolysis (IVT) before thrombectomy for ischemic stroke may alter clot structure and procedural performance. We investigated how IVT relates to thrombectomy metrics across stroke etiologies. Methods We performed a time‐to‐event analysis of consecutive patients with anterior circulation large vessel occlusion (acLVO ...
Annahita Sedghi +8 more
wiley +1 more source
Advantages of strong mode coupling for suppression of nonlinear distortion in few-mode fibers [PDF]
, 2016 Nonlinear distortion in few-mode fibers for intermediate coupling is studied for the first time. Coupling strengths beyond -20 dB/100m give suppression of nonlinear distortion below the isolated mode without mode ...
Filipe M. Ferreira +11 more
core +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao +6 more
wiley +1 more source
TAPERED FEW-MODE FIBERS: MODE EVOLUTION DURING FABRICATION AND ADIABATICITY
, 2011 In this paper, the evolution of the LP11 mode during the fabrication of tapered optical fibers is examined. General trends in the modal coupling are inferred from probe beam transmission plots.
ALEX PETCU-COLAN +2 more
core +1 more source
Mode Multiplexing and High Efficient Switching in Few-Mode Fiber Based on Modeled Blazed Grating
IEEE Photonics Journal, 2016 We propose a novel approach based on modeled blazed grating (MBG) to realize the mode conversion, multiplexing, demultiplexing, and switching in few-mode transmission fibers.
Yuan-Hua Feng +4 more
doaj +1 more source