Results 21 to 30 of about 19,826 (214)

Photo-elasticity of silk fibroin harnessing whispering gallery modes

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   +1 more source

Out-of-plane trion emission in monolayer WSe2 revealed by whispering gallery modes of dielectric microresonators

open access: yesCommunications Materials, 2021
Out-of-plane photon emission in 2D semiconductors is rare but crucial for efficient light manipulation in planar optoelectronic devices and photonic chips.
Daniel Andres-Penares   +5 more
doaj   +1 more source

Theoretical Analysis of the Refractometric Sensitivity of a Coated Whispering Gallery Mode Resonator for Gas Sensing Applications

open access: yesSensors, 2022
We present a theoretical analysis of the refractometric sensitivity of a spherical microresonator coated with a porous sensing layer performed for different whispering gallery modes. The effective refractive index of the modes is also calculated.
Davor Ristić   +4 more
doaj   +1 more source

Investigation on the Crack Effect in the Cylinder and Matrix on the Backscattering Field Frequency Specifications using the Finite Element Method [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2022
A novel method to determine the health of the industrial parts is using the ultrasound scattering waves. Any changes in the structure of the scattering object or in the boundary conditions will cause a change in the scattering field.
Omid Noormohammadi Arani   +2 more
doaj   +1 more source

Hollow Core, Whispering Gallery Resonator Sensors [PDF]

open access: yes, 2005
A review of hollow core whispering gallery resonators (WGRs)is given. After a short introduction to the topic of whispering gallery resonators we provide a description of whispering gallery modes in hollow or liquid core WGRs.
Gloudon, Jason   +4 more
core   +4 more sources

Review of biosensing with whispering-gallery mode lasers [PDF]

open access: yesLight: Science & Applications, 2021
AbstractLasers are the pillars of modern optics and sensing. Microlasers based on whispering-gallery modes (WGMs) are miniature in size and have excellent lasing characteristics suitable for biosensing. WGM lasers have been used for label-free detection of single virus particles, detection of molecular electrostatic changes at biointerfaces, and ...
N. A. Toropov   +5 more
openaire   +6 more sources

Er3+ doped tellurite whispering gallery mode microlasers in 1.5 μm–1.61 μm wavelength region generated by 0.98 μm and 1.48 μm pump lasers

open access: yesOptical Materials: X, 2023
In this paper, we demonstrate Er3+ doped tellurite single and multi-mode microlasers in 1.5 μm–1.6 μm wavelength range fabricated via the plasma torch method.
Snigdha Thekke Thalakkal   +7 more
doaj   +1 more source

Carrier-induced refractive index change observed by a whispering gallery mode shift in GaN microrods

open access: yesNew Journal of Physics, 2015
Vertical oriented GaN microrods were grown by metal-organic vapor phase epitaxy with four different n-type carrier concentration sections above 10 ^19 cm ^−3 along the c -axis.
C Tessarek   +4 more
doaj   +1 more source

Effect of tapering diameters with microbottle resonator for formaldehyde (CH2O) liquid sensing

open access: yesSensing and Bio-Sensing Research, 2019
In this study, we demonstrate the effect of the microbottle resonator (MBR) based on whispering gallery modes (WGMs) with two different diameters of tapered microfibre and its experiment with the formaldehyde (CH2O) liquid sensor. The MBR with the bottle
Md Ashadi Md Johari   +8 more
doaj   +1 more source

Reconfigurable Liquid Whispering Gallery Mode Microlasers [PDF]

open access: yesScientific Reports, 2016
AbstractEngineering photonic devices from liquid has been emerging as a fascinating research avenue. Reconfigurably tuning liquid optical micro-devices are highly desirable but remain extremely challenging because of the fluidic nature. In this article we demonstrate an all-liquid tunable whispering gallery mode microlaser floating on a liquid surface ...
Yang S.   +6 more
openaire   +5 more sources

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