Results 11 to 20 of about 15,725 (240)

Plane wave scattering from thin dielectric disk in free space: Generalized boundary conditions, regularizing Galerkin technique and whispering gallery mode resonances

open access: goldIET Microwaves, Antennas & Propagation, 2021
Considered is the plane‐wave scattering from and absorption by a thin circular dielectric disk. The analysis uses a set of the singular integral equations for the effective electric and magnetic currents, derived using the generalized boundary conditions
Mario Lucido   +2 more
doaj   +2 more sources

Waveguide for Lamb Waves Based on Whispering-Gallery Mode [PDF]

open access: green2018 IEEE International Ultrasonics Symposium (IUS), 2018
We proposed three kinds of waveguides namely straight waveguide, Z-shaped waveguide and Pi-shaped waveguide in an otherwise perfect phononic crystal. We analyzed numerically the transmissivity and the displacement field distribution behind the waveguides.
Weitao Yuan   +4 more
openalex   +3 more sources

Whispering gallery modes for elastic waves in disk resonators [PDF]

open access: goldAIP Advances, 2011
The resonant modes of elastic waves in disk resonators are computationally studied with the finite difference time domain method. Different materials examined for the disk such as platinum and silicon. The effect of a glass substrate is also important especially in the case of silicon disks because of the similarity of sound velocities and mass ...
S. Kaproulias, M. M. Sigalas
openalex   +3 more sources

Glucose Levels Sensing using Whispering Gallery Modes at mm-Wave Band [PDF]

open access: green, 2019
In this study, an integrated low-cost and complexity mm-wave structure of Whispering Gallery Mode (WGM) is proposed for sensing the glucose levels in mimicking aquatic solutions of concentrations similar to type 2 diabetics. The bio-sensor is composed of a curved dielectric waveguide coupled to a dielectric disc resonator that is loaded with the ...
Ala Eldin Omer   +2 more
openalex   +3 more sources

Continuous-wave electron-light interaction in high-Q whispering gallery microresonators

open access: green2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2021
Achieving strong coupling of electron beams with single photons and harnessing their potential entanglement promises advancemenets in quantum optics with free-electron, merging spectroscopy of individual quantum systems with the nanoscale spatial resolution available in electron microscopes.
Jan-Wilke Henke   +11 more
openalex   +4 more sources

Threshold characteristics of evanescent-wave pumped whispering-gallery-mode fiber laser

open access: hybridActa Physica Sinica, 2009
The lasing threshold of evanescent-wave pumped whispering_gallery_mode (WGM) fiber lasers has been studied. Quartz fibers of different diameters were immersed in a mixed solution of ethanol and ethylene glycol doped by rhodamine 6G dye molecules, the refractive index of the solution was variable and lower than that of quartz fiber.
Yuanxian Zhang   +5 more
openalex   +2 more sources

Evanescent-Wave Pumped and Gain Coupled Whispering-Gallery-Mode Fibre Laser [PDF]

open access: hybrid, 2012
A novel Whispering–Gallery–Mode (WGM) fibre laser is demonstrated by pumping and gain coupling with evanescent-waves in this chapter. The properties of the fibre laser, including energy threshold, produced length and polarization of lasing emission have been investigated.
Xiaoyun Pu, Yuanxian Zhang, Feng Li
openalex   +3 more sources

Trapping a single atom in the evanescent field of a WGM-resonator [PDF]

open access: yesEPJ Web of Conferences, 2022
We demonstrate the trapping of single atoms in the evanescent field of a whispering-gallery-mode (WGM) resonator with a standing wave optical dipole trap. We present our progress towards an improved trap loading scheme.
Maron Gabriele   +7 more
doaj   +1 more source

Investigation and Analysis of Acoustojets by Spectral Element Method

open access: yesMathematics, 2022
In this study, acoustic wave scattering in a homogeneous media by an obstacle is examined in the case of plane wave excitation and the formation of acoustic jets is explored.
Ibrahim Mahariq   +5 more
doaj   +1 more source

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