Results 1 to 10 of about 1,725 (117)

Photo-elasticity of silk fibroin harnessing whispering gallery modes [PDF]

open access: yesScientific Reports, 2023
Silk fibroin is an important biomaterial for photonic devices in wearable systems. The functionality of such devices is inherently influenced by the stimulation from elastic deformations, which are mutually coupled through photo-elasticity.
Nikolaos Korakas   +9 more
doaj   +2 more sources

Monitoring Single DNA Docking Site Activity with Sequential Modes of an Optoplasmonic Whispering-Gallery Mode Biosensor [PDF]

open access: yesSensors
In recent years, there has been rapid advancement in single-molecule techniques, driven by their unparalleled precision in studying molecules whose sizes are beyond the diffraction limit.
Narima Eerqing   +4 more
doaj   +2 more sources

Bound states in the continuum in whispering gallery resonators with pointlike impurities [PDF]

open access: yesScientific Reports
Whispering gallery resonators offer a versatile platform for manipulating the photonic transmission. Here, we study such a system, including periodically distributed pointlike impurities along the resonator with ring geometry.
M. A. Figueroa   +2 more
doaj   +2 more sources

Efficient coupling of free propagating light into Whispering Gallery Modes [PDF]

open access: yesEPJ Web of Conferences, 2021
Whispering Gallery Mode resonators are dielectric structures with cylindrical symmetry. They are typically excited with an evanescent field leaking out of a tapered fiber or a waveguide.
Zambrana-Puyalto Xavier   +2 more
doaj   +1 more source

A whispering-gallery scanning microprobe for Raman spectroscopy and imaging

open access: yesLight: Science & Applications, 2023
Optical whispering-gallery-mode microsensors are a promising platform for many applications, such as biomedical monitoring, magnetic sensing, and vibration detection.
Wenbo Mao   +4 more
doaj   +1 more source

Evolution of Whispering Gallery Modes in Li-Doped ZnO Hexagonal Micro- and Nanostructures

open access: yesApplied Sciences, 2020
The formation of optical cavities in Li-doped ZnO nanostructures was investigated. By means of the vapor–solid method, long micro- and nanostructures with a hexagonal cross-section were grown.
Rocío Ariza   +4 more
doaj   +1 more source

Optical whispering-gallery mode barcodes for high-precision and wide-range temperature measurements

open access: yesLight: Science & Applications, 2021
Temperature measurement: optical barcodes from whispering-gallery sensors Extremely precise measurement of temperature using devices known as whispering-gallery mode (WGM) sensors can be greatly improved using a technique that simultaneously monitors ...
Jie Liao, Lan Yang
doaj   +1 more source

Analysis of forward Brillouin scattering in optical fibers with whispering-gallery modes [PDF]

open access: yesEPJ Web of Conferences, 2023
A new approach to detect and analyze transverse acoustic mode resonances (TAMRs), responsible for forward Brillouin scattering in optical fibers, is reported using optical whispering gallery modes (WGMs).
Sánchez Luis A.   +3 more
doaj   +1 more source

Trapping photons with optical black hole

open access: yesLight: Science & Applications, 2023
An optical black-hole cavity based on transformation optics enables Q-factor enhancement and strong field confinement, by eliminating the intrinsic radiation loss of the conventional whispering-gallery modes, holding potential for applications in energy ...
You-Ling Chen, Qi-Tao Cao, Yun-Feng Xiao
doaj   +1 more source

Simulations of single-mode laser emission along a waveguide connected to cross-coupled microresonators

open access: yesResults in Optics, 2022
Objective: Single-mode operation is very important for laser emissivity; to exceed the emissivity of a single laser, the phase locking of all lasers in an array can be achieved only when the laser array is coupled and operated in single-mode. Methods: In
Lulu Wang, Zhihong Zhang, Heng Gao
doaj   +1 more source

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