Results 111 to 120 of about 429,343 (389)
Cavity piezooptomechanics: piezoelectrically excited, optically transduced optomechanical resonators
We present a monolithic integrated aluminum nitride (AlN) optomechanical resonator in which the mechanical motion is actuated by piezoelectric force and the displacement is transduced by a high-Q optical cavity.
Fan, Linran+3 more
core +1 more source
Cascaded ring resonator-based temperature sensor with simultaneously enhanced sensitivity and range.
We report a cascaded ring resonator (CRR) based, silicon photonic temperature sensor for simultaneous sensitivity and range enhancement. To achieve the dual enhancement, the proposed CRR temperature sensor employs two micro ring resonators with different
Hyun-Tae Kim, Miao Yu
semanticscholar +1 more source
NMDAR‐Antibody Encephalitis Diagnosed With Primary Central Nervous System Lymphoma: A Case Series
ABSTRACT N‐methyl‐D‐aspartate receptor‐antibody encephalitis (NMDAR encephalitis) is one of the most common forms of autoimmune encephalitis, with a paraneoplastic relationship described in approximately 38%. Primary central nervous system lymphoma (PCNSL) is a rare hematologic malignancy that is not often considered as the underlying neoplasm in this ...
Soo Hyun Ahn+4 more
wiley +1 more source
To take advantage of the physical principles of determining parameters, such as frequency stability, noise and also alignment of optical signals, it is necessary to control complex systems.
Salzenstein Patrice
doaj +1 more source
Soft lithography replica molding of critically coupled polymer microring resonators [PDF]
We use soft lithography replica molding to fabricate unclad polystyrene (PS) and clad SU-8 microring resonator filters. The PS resonator has an intrinsic quality factor of 1.0/spl times/10/sup 4/ at /spl lambda/=1.55 /spl mu/m, while that of the SU-8 ...
Huang, Yanyi+3 more
core
SARS‐CoV‐2 Is Linked to Brain Volume Loss in Multiple Sclerosis
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+12 more
wiley +1 more source
Factors for Rituximab Refractoriness in AQP4‐IgG+ NMOSD: A Cohort Study
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+8 more
wiley +1 more source
Study for quartz resonators in miniature metal-ceramic package for further use in temperature-compensated oscillators [PDF]
With the advent of new technologies, the requirements for the sources of reference vibrations are becoming more stringent. They must be compact, quickly reach frequency, operate in a wide temperature range and have a small relative frequency drift in ...
M. I. Boychuk
doaj +1 more source
Optomechanical Transductions in Single and Coupled Wheel Resonators
In this report, the optomechanical transductions in both single and two side-coupled wheel resonators are investigated. In the single resonator, the optomechanical transduction sensitivity is determined by the optical and mechanical quality factors of ...
Fan, Jiahua+3 more
core +1 more source
AbstractNon‐linear parametric resonances occur frequently in nature. Here we summarize how they can be studied by means of perturbative methods. We show in particular how resonances can affect the motion of a test particle orbiting in the vicinity of a compact object.
openaire +2 more sources