Results 141 to 150 of about 2,942,065 (392)

Nonlinear Oscillations and Bifurcations in Silicon Photonic Microresonators

, 2014
Silicon microdisks are optical resonators that can exhibit surprising nonlinear behavior. We present a new analysis of the dynamics of these resonators, elucidating the mathematical origin of spontaneous oscillations and deriving predictions for observed
Abrams, Daniel M., Slawik, Alex, Srinivasan, Kartik   +2 more
core   +1 more source

Serotonergic and Dopaminergic Function in Neuropsychiatrically Asymptomatic People With HIV on Antiretroviral Therapy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective People with HIV (PWH) on antiretroviral therapy (ART) still experience neurocognitive dysfunction and accelerated brain volume loss. To assess whether the serotonergic and dopaminergic systems are affected, we used [11C]DASB positron emission tomography (PET) to assess presynaptic serotonergic function and [18F]FDOPA PET to measure ...
Chuen‐Yen Lau, Anna Lyndaker, Swati Shah, Paul Wakim, Amelia Mitchell, Cynthia Monroe, Alan Kim, Tracy L. Cropper, Govind Nair, Joseph Snow, Bryan R. Smith, Avindra Nath, Dima A. Hammoud   +12 more
wiley   +1 more source

Reversible quantum optical data storage based on resonant Raman optical field excited spin coherence [PDF]

, 2008
A method of reversible quantum optical data storage is presented using resonant Raman field excited spin coherence, where the spin coherence is stored in an inhomogeneously broadened spin ensemble. Unlike the photon echo method, present technique uses a 2 pi Raman optical rephasing pulse, and multimode (parallel) optical channels can be utilized, where
arxiv   +1 more source

Cold Tests of Quasi-Optical Gyrotron Resonators [PDF]

, 1989
R. P. Fischer, T. A. Hargreaves, A. W. Fliflet   +2 more
openalex   +2 more sources

Inverse design of cooperative electromagnetic interactions

, 2013
The cooperative electromagnetic interactions between discrete resonators have been widely used to modify the optical properties of metamaterials. Here we propose a general evolutionary approach for engineering these interactions in arbitrary networks of ...
Ben-Abdallah, Philippe, Besbes, Mondher, Hugonin, Jean-Paul, Langlais, Mathieu   +3 more
core   +2 more sources

SARS‐CoV‐2 Is Linked to Brain Volume Loss in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The impact of SARS‐CoV‐2 infection on brain and spinal cord pathology in patients with multiple sclerosis (pwMS) remains unclear. We aimed to describe changes in brain lesion activity and brain and spinal cord volumes following SARS‐CoV‐2 infection.
Tomas Uher, Dominika Stastna, Ingrid Menkyova, Vaclav Capek, Jiri Lindner, Petra Nytrova, Jan Krasensky, Eliza Varju, Miguel D'haeseleer, Eva Kubala Havrdova, Dana Horakova, Manuela Vaneckova, Niels Bergsland   +12 more
wiley   +1 more source

Chirped dissipative solitons in driven optical resonators. [PDF]

Optica, 2021
Spiess C, Yang Q, Dong X, Bucklew VG, Renninger WH.   +4 more
europepmc   +1 more source

Factors for Rituximab Refractoriness in AQP4‐IgG+ NMOSD: A Cohort Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neuromyelitis optica spectrum disorder (NMOSD) is a severe autoimmune condition of the central nervous system (CNS), often associated with aquaporin‐4 antibodies (AQP4‐IgG). Rituximab, a CD20+ B‐cell depleting monoclonal antibody, is widely used as first‐line therapy.
Mariano Marrodan, María A. Piedrabuena, María A. Zarate, Sofía Rodríguez Murúa, Ezequiel I. Surace, Mauricio F. Farez, Marcela P. Fiol, María C. Ysrraelit, Jorge Correale   +8 more
wiley   +1 more source

Understanding and Controlling Mode Hybridization in Multicavity Optical Resonators Using Quantum Theory and the Surface Forces Apparatus. [PDF]

ACS Photonics, 2021
Zappone B, Caligiuri V, Patra A, Krahne R, De Luca A.   +4 more
europepmc   +1 more source

Invited Article: Real-time sensing of flowing nanoparticles with electro-opto-mechanics

APL Photonics, 2017
High-Q optical resonators allow label-free detection of individual nanoparticles through perturbation of optical signatures but have practical limitations due to reliance on random diffusion to deliver particles to the sensing region.
Jeewon Suh, Kewen Han, Christopher W. Peterson, Gaurav Bahl   +3 more
doaj   +1 more source