Guide on how to simulate the whisperinggallery modes of axisymmetric electromagnetic resonators through the use of comsol. Numerical evolutions of whispering gallery modes of both isotropic and anisotropic spheroidal resonators are presented and are used to build analytical approximations of these modes. The new formalism is performed on a cavitywaveguide coupling system to investigate the light delivery from a tapered optical waveguide to a microcavity at high precision. In addition to the operating system requirements listed below, see the interfacing product suite requirements for specific requirements for the cad import module, design module, and the livelink products. Hu 1 1school of engineering and applied sciences, harvard university, cambridge, ma, 028, usa 2department of materials science and metallurgy, university of. Comsol simulation tutorial for mode analysis of wgm resonators. Whispering gallery modes in standard optical fibres for. A whisperinggallerymodebased seismometer provides for receiving laser light into an optical fiber, operatively coupling the laser light from the optical fiber into a whisperinggallerymodebased optical resonator, operatively coupling a spring of a springmass assembly to a housing structure. Controlling the lasing mode, emission direction, threshold, and quality factor of whisperinggallery mode lasing is important for practical applications such. Hi guys, i am trying to simulate whispering gallery modes in a plasmonic hybrid resonator. Exhouse 2d finiteelement simulation of the whisperinggallery. Simulation geometry in a biosensing context, realistic microspheres typically have a radius of a few tens of. Warning your internet explorer is in compatibility mode and may not be displaying the website correctly.
Get started using the comsol multiphysics software. This paper explains how a popular, commerciallyavailable software package for solving partialdifferentialequations pdes, as based on the finiteelement method fem, can be configured to calculate, efficiently, the frequencies and fields of the whisperinggallery wg modes of axisymmetric dielectric resonators. Numerical simulation of eigenmodes of ring and racetrack optical. How to simulate the whisperinggallerymodes of dielectric microresonators in femlabcomsol mark oxborrow national physical laboratory, teddington, middlesex tw11 0lw, united kingdom abstract it is explained how femlab comsol multiphysics can be configured to calculate, the frequencies, electromagneticfield patterns, mode volumes, filling factors, radiation losses. Finally, finite element methodbased commercial software, comsol, has been used to obtain wg modes for spherical microresonator grown on the top of sp supporting substrates.
This content is presented at fem workshop organized by epfl in omt etn. Analytical approximations of whispering gallery modes in. In this paper, we investigate conditions to form whispering gallery modes wgms in small nanocavities ncs which are designed at the intersection area of couple of nanobeams nbs structures. Alternativeto is a free service that helps you find better alternatives to the products you love and hate. The strong excitonphoton interaction that emerged in monolayer transition metal dichalcogenides tmds holds promise for engineering and integration.
This might be a question better suited for the software recommendations side of s. Understanding stimulated brillouin scattering with a. The kx is a user forum for users who want to ask questions and exchange simulation tips with the larger lumerical community. Uh innovation centre college lane hatfield hertfordshire al10 9ab phone. First, optical whispering gallery modes are predicted.
We have performed a numerical study of whispering gallery modes of ring and race track optical. Learn how to use multiphysics modeling and simulation to innovate and optimize your engineering designs. How to simulate the whisperinggallery modes of dielectric microresonators in femlabcomsol how to simulate the whisperinggallery modes of dielectric microresonators in femlabcomsol oxborrow, mark 20070208 00. The light source used to excite whispering gallery modes in the sensor fibre is a 20 mw fibrecoupled santur tl2020c dfb communications laser, tuneable over the range from 191. Controlled tuning of whispering gallery modes of ganingan microdisk cavities igor aharonovich 1, nan niu 1, fabian rol 1, kasey j russell 1, alexander woolf 1, haitham a. To calculate the spectral properties of the model, boundarymode analyses and a. Single molecule nucleic acid interactions monitored on a. Reconfigurable liquid whispering gallery mode microlasers. In order to assign the resonance dips to the corresponding whisperinggallery modes of the disk resonator, we simulate the eigenmodes of the disk resonator using. Such approximations are carried out mainly to have the possibility to have manageable analytic formulas for the eigenmodes and eigenfrequencies of anisotropic resonators. Algainasinp hexagonal resonator microlasers with a center.
A novel hybrid integration scheme to implement an ultrahigh quality factor microcavity on. Thermal noise in whispering gallery mode resonators. Comsol is the developer of comsol multiphysics software, an interactive environment for modeling and simulating scientific and engineering problems. Simulating an optical ring resonator in the comsol software. Comsol multiphysics alternatives and similar software. The lumerical knowledge base contains the definitive reference guide on. Optothermal transport behavior in whispering gallery mode. Mode volume calculation of whispering gallery modes.
Comsol simulation tutorial for thermal noises in wgm resonators. Learn about multiphysics modeling and simulation comsol blog. Microresonator, microcavity, whispering gallery, wgm, simulation. Developing integrable, nanoscale, and lowenergyconsumption lasers is a crucial step toward onchip optical communications and computing technologies. Traceable 2d finiteelement simulation of the whispering. Axisymmetric electromagnetic resonators mark oxborrow.
Whisperinggallery mode lasing in a floating gan microdisk. It is explained how femlab comsol multiphysics can be configured to calculate, the frequencies, electromagneticfield patterns, mode volumes, filling factors, radiation losses. Controlled tuning of whispering gallery modes of gan final. The application gallery contains numerous simulation project files to get started quickly and easily. Optically pumped monolayer mose2 excitonic lasers from. It is explained how femlab comsol multiphysics can be configured to calculate, the frequencies, electromagneticfield patterns, mode volumes, filling factors. Comet understanding stimulated brillouin scattering with. How to simulate the whisperinggallery modes of dielectric. For this purpose, the finite element method with comsol multiphysics software was employed. Next, they are combined with the photoelastic tensor to estimate the 3d electrostrictive stress distribution, which is used to simulate 11ghz acoustical phonons. I am looking for a free not only as in freedom alternative to comsol multiphysics. Resonant photonic modes called whispering gallery modes wgms in a transparent sphere have high sensitivity to environmental changes. Pdf finite element simulation of a perturbed axial.
The site is made by ola and markus in sweden, with a lot of help from our friends and colleagues in italy, finland, usa, colombia, philippines, france and contributors from all over the world. Tapered airholes at each branch of nbs have been employed as a part of mirror accompanied by curvedwalls at cross junctions to form a small curved nanocavity. The change is most sensitively detected in the frequency of the extremely narrow resonance. Theory of resonance shifts in te and tm whispering gallery.
Comsol webinar vibration and noise analysis in comsol multiphysics. Browse the application gallery and download tutorial models with instructions and view example apps. Calculating the spectral properties of an optical ring resonator. In order to assign the resonance dips to the corresponding whispering gallery modes of the disk resonator, we simulate the eigenmodes of the disk resonator using comsol. Whispering gallery how is whispering gallery abbreviated. Effects of nanocylinders on the whispering gallery modes in a. Traceable 2d finiteelement simulation of the whisperinggallery modes of axisymmetric electromagnetic resonators.
Axisymmetric electromagnetic resonators mark oxborrow and. Surface plasmon coupled whispering gallery mode for. How to simulate the whisperinggallerymodes of dielectric. How to simulate the whisperinggallerymodes of dielectric microresonators in femlabcomsol mark oxborrow national physical laboratory, teddington, middlesex tw11 0lw, united kingdom abstract it is explained how femlab comsol multiphysics can be. Thats right, all the lists of alternatives are crowdsourced, and thats what makes the data. This content is presented at fem workshop organized by epfl in omt etn workshop series. It provides all the comsol, matlab, and mathematica sources codes behind the papers titled traceable 2d finiteelement simulation of the whisperinggallery modes of axisymmetric electromagnetic resonators and how to simulate the whisperinggallerymodes of dielectric microresonators in femlabcomsol. Carl meinhart uses multiphysics simulation to explore transport process problems in microfluidics and photonics.
Effects of nanocylinders on the whispering gallery modes. Mode matching analysis of whispering gallery mode cavities by xuan du b. Modematching analysis of whisperinggallerymode cavities. Whispering gallery modes formation in small nanocavities. Herein, we prepare the mose2microsphere cavities excitonic lasers by placing sio2.
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