See How Multiphysics Simulation Is Used in Research and Development

Engineers, researchers, and scientists across industries use multiphysics simulation to research and develop innovative product designs and processes. Find inspiration in technical papers and presentations they have presented at the COMSOL Conference. Browse the selection below or use the Quick Search tool to find a specific presentation or filter by application area.


View the COMSOL Conference 2023 Collection

Optics, Photonics and Semiconductorsx

A Novel Wavelength Detection Method Based on Wavelength Absorption in Silicon

K. Zhang [1], Y. Audet [1],
[1] École Polytechnique de Montréal, Montréal, QC, Canada

A new filter-less method of detecting the spectrum based on wavelength absorption in silicon is proposed. Wavelength dependent absorption coefficient produces a unique excess carrier distribution. Thus the wavelength spectral information can be obtained by measuring the photon generated ... Read More

Absorption and Scattering of Gold Nanoparticles

I. Bariakhtar [1],
[1] Boston College, Chestnut Hill, MA, USA

The interest to study the nanoparticles absorbed on the substrate is caused by the multiple practical applications of such systems [1, 2]. The author suggests a method of examining their properties by calculating the absorption and scattering of the electromagnetic field by such system ... Read More

Simulation of Reverse Saturable Absorption

N. Bambha [1],
[1] U.S. Army Research Laboratory, Hillandale, MD, USA

This poster describes a simulation of reverse saturable absorption in a solution C60 molecules using the COMSOL Multiphysics® software. The optical processes in C60 can be modeled through a five-level system. The energy states include three levels of the singlet state, coupled to two ... Read More

Multiple-Mode Polymeric-Silicon Dual-Channel Gas Sensors

K. Liang [1], A. Dodabalapur [1], D. Sharma [1],
[1] Microelectronics Research Center, University of Texas, Austin, TX, USA

An organic-inorganic dual-channel sensor makes a strong chemical gas sensor because this device design combines the high chemical sensitivities and selectivity of organic semiconductors [1-4] with the superior electrical performance and convenient integration of silicon semiconductors. ... Read More

Tunable Resonance of Star Shaped Nanostructures

R. Díaz de León-Zapata [1,2], B. Mora [2], M. Jose-Yacaman [3], F. J. Gonzalez [2]
[1] Instituto Tecnológico de San Luis Potosí, Av. Tecnológico s/n, San Luis Potosí, S.L.P., Mexico
[2] Universidad Autónoma de San Luis Potosí, CIACyT, San Luis Potosí, S.L.P., Mexico
[3] University of Texas at San Antonio, San Antonio, TX, USA

Auto assembled Ag-ZnO [1] star shaped nanostructures depicted in figure 1, presents their natural electromagnetic resonance at 60 THz. In this work we present that is possible to change this value by covering it with a variable in thickness layer of gold. The analysis is performed by ... Read More

Vibrational Modes and Optical Phonon Dispersion in Silicon Metalattices

Y. Xiong [1]
[1] Department of Materials Science and Engineering, Pennsylvania State University - University Park, State College, PA, USA

Phonons underlie the propagation of sound and the transport of heat in materials. With outstanding progress in the design of phononic crystals, it is now feasible to control the acoustic properties of these materials and to endow them with unique acoustic properties. For instance, it ... Read More

Thermal Corrective Devices for Advanced Gravitational Wave Interferometers

M. Kasprzack [1], J. Ramette [2],
[1] Louisiana State University, Baton Rouge, LA, USA
[2] Hillsdale College, Hillsdale, MI, USA

The advanced gravitational wave detectors require injecting a high continuous power laser into the optical cavities of the interferometers to reach their design sensitivity. To mitigate the thermal aberrations created by absorption of this high power load into the various optical ... Read More

Extraordinary Optical Transmission in Copper-Based Devices at Terahertz Frequencies

S. Almousa [1], J. A. Deibel [1],
[1] Department of Physics, Wright State University, Dayton, OH, USA

While low frequency light is poorly transmitted through an aperture in a conductive thin film, in the phenomenon known as extraordinary optical transmission (EOT), a narrow band of selected frequencies are transmitted when incident on an array of subwavelength periodic apertures where ... Read More

Optimizing the Fluorescence of Diamond Color Centers Encapsulated into Core-Shell Nano-Resonators

M. Csete [1], L. Z. Szabó [1], A. Szenes [1], B. Bánhelyi [2], T. Csendes [2], G. Szabó [1]
[1] Department of Optics and Quantum Electronics, University of Szeged, Szeged, Hungary
[2] Institute of Informatics, University of Szeged, Szeged, Hungary

INTRODUCTION Enhancement of a single-photon emission is a great demand in recent science and applications, including development novel class of light sources, encoded information transfer and biological imaging [1, 2, 3]. Fluorescence can be improved through excitation and emission ... Read More

Design of Next Generation Mid-infrared Fiber Optics

X. Ji [1], R. Page [2], V. Gopalan [1],
[1] Pennsylvania State University, State College, PA, USA
[2] Pacific Lutheran University, Tacoma, WA, USA

Optical fibers that can deliver mid-infrared light in a wide wavelength range are in high demand due to their significant potentials in sensors, chemical imaging, optoelectronics and nonlinear optics applications. Semiconductors such as Ge, ZnSe and Si are good infrared-transparent ... Read More