Results 101 to 110 of about 2,942,065 (392)
Alignment of resonant optical cavities [PDF]
Applied Optics, 1984 When an input Gaussian beam is improperly aligned and mode-matched to a stable optical resonator, the electric field in the resonator couples to off-axis spatial eigenmodes. We show that a translation of the input axis or a mismatch of the beam waist to the resonator waist size causes a coupling of off-axis modes which is inphase with the input field ...
openaire +4 more sources
Annals of Clinical and Translational Neurology, EarlyView.Abstract Objective Exploring the prevalence and association between intracranial atherosclerosis (ICAS) and cerebral small vessel diseases (CSVD), this study delved beyond the current scope, utilising high‐resolution vessel wall MRI (HRVW‐MRI) to investigate how subtle changes in intracranial atherosclerotic features influence the various burdens of ...
Joseph Amihere Ackah +6 more
wiley +1 more source
Results in Physics, 2019 Multi-optical carriers suitable for use in an optical communication system have been generated via integrated microring resonators. These carriers were sufficiently stable for travel in either a free space channel or waveguides while experiencing very ...
Satish Addanki, P. Yupapin, I.S. Amiri
doaj
Waveguide-loaded silica fibers for coupling to high-index micro-resonators [PDF]
, 2015 Tapered silica fibers are often used to rapidly probe the optical properties of micro-resonators. However, their low refractive index precludes phase-matching when coupling to high-index micro-resonators, reducing efficiency. Here we demonstrate efficient optical coupling from tapered fibers to high-index micro-resonators by loading the fibers with an ...
arxiv +1 more source
Electrostatic actuation of silicon optomechanical resonators
, 2011 Optomechanical systems offer one of the most sensitive methods for detecting mechanical motion using shifts in the optical resonance frequency of the optomechanical resonator .
Bhave, Sunil A., Sridaran, Suresh
core +1 more source
Theoretical Investigation of Phonon Polaritons in SiC Micropillar Resonators [PDF]
, 2016 Of late there has been a surge of interest in localised phonon polariton resonators which allow for sub-diffraction confinement of light in the mid-infrared spectral region by coupling to optical phonons at the surface of polar dielectrics.
De Liberato, Simone +2 more
core +2 more sources
Progressive Myoclonus Epilepsy: Distinctive MRI Changes in Cerebellar and Motor Networks
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Progressive myoclonus epilepsy (PME) is a rare generalized epilepsy syndrome with a well‐characterized genetic basis. The brain networks that are affected to give rise to the distinctive symptoms of PME are less well understood. Methods Eleven individuals with PME with a confirmed genetic diagnosis and 22 controls were studied.
Jillian M. Cameron +3 more
wiley +1 more source
Demonstration of spontaneous symmetry breaking in self-modulated ring resonators
Physical Review ResearchThe demonstration of spontaneous symmetry breaking in a system consisting of a pair of self-modulated ring resonators is performed. In addition, the critical effect of thermal heating induced by optical absorption is studied, where experimental results ...
Yoonhyuk Rah, Kyoungsik Yu
doaj +1 more source
Subwavelength dielectric resonators for nonlinear nanophotonics [PDF]
Science, 2019 Enhancing optical nonlinearity Intense pulses of light interacting with a dielectric material can induce optical nonlinear behavior, whereby the frequency of the output light can be doubled or tripled or excited to even higher harmonics of the input ...
K. Koshelev +6 more
semanticscholar +1 more source
Simultaneous radiation pressure induced heating and cooling of an opto-mechanical resonator [PDF]
, 2012 Cavity opto-mechanics enabled radiation-pressure coupling between optical and mechanical modes of a micro-mechanical resonator gives rise to dynamical backaction, enabling amplification and cooling of mechanical motion. Due to a combination of large mechanical oscillations and necessary saturation of amplification, the noise floor of the opto ...
arxiv +1 more source