Results 61 to 70 of about 1,189,387 (221)
Trapping Electromagnetic Solitons in Cylinders
Mathematical Modelling and Analysis, 2014 Electromagnetic waves in vacuum or dielectrics can be confined in unbounded cylinders in such a way that they turn around the main axis. For particular choices of the cylinder's section, interesting stationary configurations may be assumed.
Daniele Funaro
doaj +1 more source
POSSIBILITY FOR FREQUENCY STABILIZATION OF MILLIMETER WAVELENGTH SOLID-STATE SOURCE BY A SCREENED DIELECTRIC RESONATOR [PDF]
Radio Physics and Radio Astronomy, 2016 Purpose: Showing the possibility in principle of the use of a screened dielectric resonator excited by the planar waveguide to stabilize the frequency of solid-state sources in the millimeter wavelength range.
A. E. Kogut +4 more
doaj +1 more source
CW‐Pumped Amplified Spontaneous Emission From Thermally Evaporated CsPbBr3 Films [PDF]
Advanced scienceThermally evaporated CsPbBr3 thin films sustain amplified spontaneous emission from short‐pulse toward quasi‐continuous‐wave excitation. Time‐resolved spectroscopy, controlled excitation, and substrate engineering reveal how excitation duration governs optical‐gain stability.
Kominko Y +5 more
europepmc +2 more sources
Massively Multiplexed Photonic Chip With Cross‐Channel Fusion For Harmonized Biosensing
Advanced Science, EarlyView.We introduce a transformative sensing platform integrating photonic multiplexing with over 10 000 sensors and a deep‐learning framework that combines domain adaptation and cross‐channel fusion for harmonized operation across heterogeneous chips. The platform achieves 99.3% identification accuracy and relative prediction errors of 10−4$^{-4}$ for ...
Ivan Saetchnikov +3 more
wiley +1 more source
Advanced Physics Research, EarlyView.We computationally investigate the mechanical, electronic, and optical properties of strained GeSn microdisks on silicon substrates. By combining photo‐elasticity, strain‐dependent band‐structure calculations, and optical mode analysis, we study how strain distribution, structural configuration, and temperature affect the electronic band structure and ...
Jon Schlipf +5 more
wiley +1 more source
Ultrahigh–Q Microtoroid On-Chip Resonators for Low Threshold Microlasers [PDF]
, 2006 Recently demonstrated silica toroidal microcavities, as on-chip resonant cavities, become one of the most promising laser resonators due to their exceptional ability to confine optical energy temporarily and spatially (high Q-factor and small mode volume)
Min, Bumki
core +1 more source
Liquid Droplet Microresonators
Sensors, 2019 We provide here an overview of passive optical micro-cavities made of droplets in the liquid phase. We focus on resonators that are naturally created and suspended under gravity thanks to interfacial forces, illustrating simple ways to excite whispering ...
Antonio Giorgini +4 more
doaj +1 more source
BMEMat, EarlyView.LSPR biosensing enables rapid, sensitive, and low‐sample‐volume detection of biomarkers, with broad applications in diagnosing cancer, infectious, and chronic diseases. Advances in nanostructure design, micro/nanofabrication, and microfluidic integration have expanded the potential of LSPR sensors in biomedical diagnostics.
Zhaoxin Geng +4 more
wiley +1 more source
Spatial Multiplexing of Whispering Gallery Mode Sensors
Sensors, 2023 Whispering gallery mode resonators have proven to be robust and sensitive platforms for the trace detection of chemical and/or biological analytes. Conventional approaches using serially addressed resonators face challenges in simultaneous multi-channel (i.e., multi-species) detection.
Stephen Holler, Matthew Speck
openaire +3 more sources
Whispering gallery modes for a transmission problem
, 2023 We construct a specific family of eigenfunctions for a Laplace operator with coefficients having a jump across an interface. These eigenfunctions have an exponential concentration arbitrarily close to the interface, and therefore could be considered as ...
Filippas, Spyridon
core +3 more sources