Results 101 to 110 of about 5,350 (226)

High-Q TM whispering-gallery modes in three-dimensional microcylinders

, 2007
We present a generation condition for realizing high-Q TM whispering-gallery modes (WGMs) in semiconductor microcylinders. For microcylinders with symmetry or weak asymmetry vertical waveguiding, we show that TM WGMs can have a high Q factor, with the ...
Huang YZ (Huang Yong-Zhen), Yang YD (Yang Yue-De), Yang, YD, Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, POB 912, Beijing 100083, Peoples R China., Chen Q (Chen Qin)   +3 more
core  

Q-factor and waveguide-sphere separation effects in waveguide-coupled microsphere resonators

Quality-factors of waveguide coupled microsphere resonators of 30µm diameter are measured. A Teflon buffer layer is deposited on the waveguide to separate the microsphere from the waveguide and the effect of this separation on the measured quality-factor
Panitchob, Y., Murugan, G.S., Wilkinson, J.S., Zervas, M.N.   +3 more
core   +1 more source

Resonance Frequency of Optical Microbubble Resonators: Direct Measurements and Mitigation of Fluctuations

Sensors, 2016
This work shows the improvements in the sensing capabilities and precision of an Optical Microbubble Resonator due to the introduction of an encaging poly(methyl methacrylate) (PMMA) box.
Alessandro Cosci, Simone Berneschi, Ambra Giannetti, Daniele Farnesi, Franco Cosi, Francesco Baldini, Gualtiero Nunzi Conti, Silvia Soria, Andrea Barucci, Giancarlo Righini, Stefano Pelli   +10 more
doaj   +1 more source

Visualizing the Nanoscopic Field Distribution of Whispering-Gallery Modes in a Dielectric Sphere by Cathodoluminescence. [PDF]

ACS Photonics, 2023
Machfuudzoh I, Hinamoto T, García de Abajo FJ, Sugimoto H, Fujii M, Sannomiya T.   +5 more
europepmc   +1 more source

Modeling of an Optical Sensor Based on Whispering Gallery Modes (WGMs) on the Surface Guiding Layer of Glass Filaments

Sensors, 2008
A ring-resonator-based refractive index sensor is proposed in this paper. Glass filaments with surface guiding layers created by ion exchange are crossed with a fiber taper to act as a ring resonator sensor.
Xianfeng Chen, Lei Shi, Wei Tan
doaj   +1 more source

Excitonic Mechanisms of Stimulated Emission in Low-Threshold ZnO Microrod Lasers with Whispering Gallery Modes. [PDF]

Materials (Basel), 2022
Tarasov AP, Muslimov AE, Kanevsky VM.
europepmc   +1 more source

Investigation of Vertical Leakage Loss for Whispering-Gallery Modes in Microcylinder Resonators

, 2011
The vertical leakage characteristics are investigated for whispering-gallery modes (WGMs) in the microcylinder resonators with vertical semiconductor waveguiding.
Yang, YD (reprint author), Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China. yyd@semi.ac.cn, Yang YD, Huang YZ   +2 more
core  

Single-molecule optofluidic microsensor with interface whispering gallery modes. [PDF]

Proc Natl Acad Sci U S A, 2022
Yu XC, Tang SJ, Liu W, Xu Y, Gong Q, Chen YL, Xiao YF.   +6 more
europepmc   +1 more source

Mode coupling between first- and second-order whispering-gallery modes in coupled microdisks

, 2007
The mode characteristics for two coupled microdisks are investigated by the finite-difference time-domain technique. In the two coupled micodisks, mode coupling between the same order whispering-gallery modes (WGMs) results in coupled WGMs with split ...
Li JJ (Li Jun-Jie), Huang YZ (Huang Yong-Zhen), Huang, YZ, Huaqiao Univ, Coll Informat Sci & Engn, Fujian 362021, Peoples R China. 电子邮箱地址: yzhuong@semi.ac.cn, Wang JX (Wang Jia-Xian)   +3 more
core  

Biosensing by WGM Microspherical Resonators

Sensors, 2016
Whispering gallery mode (WGM) microresonators, thanks to their unique properties, have allowed researchers to achieve important results in both fundamental research and engineering applications. Among the various geometries, microspheres are the simplest
Giancarlo C. Righini, Silvia Soria
doaj   +1 more source