Resources
White Papers and
Application Notes
- Thermal Management of Buildings
- Hardware and Simulation Software Advancements
- Modeling the Lithium-Ion Battery
Conference Collections
- User Presentation 2017
- User Presentation 2016
- User Presentation 2015
- User Presentation 2014
- User Presentation 2013
Additional Reading
COMSOL Multiphysics® Software as a Metasurfaces Design Tool for Plasmonic-Based Flat Lenses
B. Adomanis [1], D. B. Burckel [2], M. Marciniak [1],
[1] Air Force Institute of Technology, Wright-Patterson AFB, OH, USA
[2] Sandia National Laboratories, Albuquerque, NM, USA
Introduction: Flat lenses require precise control of a phase gradient across an interface, which is enabled through the application of engineered surfaces, such as Metasurfaces [1]. Periodic arrays of plasmonic antennas have been utilized to generate this desired phase gradient, which dictates the angle of “anomalous” refraction of the cross-polarized field scattered from a normal-incidence ...
Simulation of Vector Mode Grating Coupler Interfaces for Integrated Optics
C. T. Nadovich [1],
[1] Lafayette College, Easton, PA, USA
The use of grating couplers to couple conventionally phased and polarized light near vertically in and out of optical slab or film waveguides [1] represents an attractive method to interface optical fiber to photonic ICs. Previously developed grating coupler designs use transversely uniform grating structures matched to conventional scalar fiber modes. The performance of these geometries can be ...
Design of Solar Thermal Dryers for 24-hour Food Drying Processes
F. S. Alleyne [1], R. R. Milczarek [1],
[1] Healthy Processed Foods Research Unit, U.S. Department of Agriculture, Albany, CA, USA
Solar drying is a ubiquitous method that has been adopted for many years as a food preservation method. Most of the published articles in the literature provide insight on the performance of solar dryers in service but little information on the dryer construction material selection process or material attributes that allow them to be selected as candidates in solar dryer designs. 1–7 ...
Characterization of a 3D Photonic Crystal Structure Using Port and S-Parameter Analysis
M. Dong[1], M. Tomes[1], M. Eichenfield[2], M. Jarrahi[1], T. Carmon[1]
[1]University of Michigan, Ann Arbor, MI, USA
[2]Sandia National Laboratories, Albuquerque, NM, USA
We present a 3D port sweep method in a lossy silicon photonic crystal resonator to demonstrate the capabilities of COMSOL Multiphysics® for frequency domain analysis with input and output ports. This method benefits from the advantages of the S-parameter analysis to characterize the input and output coupling into the resonator. By pumping one end of the cavity with a CW plane wave, we are able ...
A Study of Optical Sensor Based on Fiber Bragg Grating Using COMSOL Multiphysics®
C. Gavrila[1] and I. Lancranjan[2]
[1]Technical University of Civil Engineering Bucharest, Bucharest, Romania
[2]Advanced Study Centre, National Institute for Aerospace Research “Elie Carafoli”, Bucharest, Romania
Fiber optic sensors can measure a large range of physical, chemical and environmental variables such as temperature, pressure, shape, position, chemical concentration, moisture, etc. Fiber optic sensors provide measurements in applications where the conventional electrical based sensors cannot be used, due to measurement requirements such as extreme temperature, small size, high sensor count, or ...
Optical and Electrical Modeling of Three Dimensional Dye Sensitized Solar Cells
P. Guo[1]
[1]Northwestern University, Evanston, IL, USA
Dye sensitized solar cells (DSSCs) have received tremendous attention as alternative photon harvesting devices. While the sintered TiO2 nanoparticle network attached with dye molecules achieves efficient photon absorption, the electrons have to diffuse through the long TiO2 network to reach the contact, resulting in a high electron density and thus increased recombination. Extensive research ...
Enhanced Surface Plasmon Polariton Propagation Induced by Active Dielectrics - new
M. Mattheakis[1], C. Athanasopoulos[1], G. P. Tsironis[1]
[1]University of Crete, Heraklion, Greece
We present numerical simulations for the propagation of surface plasmon polaritons in a dielectric-metal-dielectric waveguide using COMSOL Multiphysics® software. We show that the use of an active dielectric with gain that compensates metal absorption losses enhances substantially plasmon propagation. Furthermore, the introduction of the active material induces, for a specific gain value, a ...
Full-Wave Analysis of Nanoscale Optical Trapping
E. Furlani, and A. Baev
The Institute for Lasers, Photonics and Biophotonics, University at Buffalo, Buffalo, NY, USA
Plasmonic-based optical trapping is in its infancy and growing rapidly. Research in this area will significantly advance fundamental understanding in fields such as nanophotonics and biophotonics. Novel plasmonic trapping structures and systems can be designed and optimized using the COMSOL RF solver. We present a study of plasmonicbased optical trapping of neutral sub-wavelength ...
Birefringence Induced in Optical Rib Waveguides by Thermal and Mechanical Stresses - new
G. Grasso[1], V. M. N. Passaro[1], F. De Leonardis[1]
[1]Photonics Research Group, Politechnic Institute of Bari, Bari, Italy
In this paper a multiphysics approach to study the optical properties of integrated waveguides influenced by thermal and mechanical stress is presented. The heating and pressure effects are evaluated by means the Heat Transfer and Structural Mechanics modules respectively. Finally, the electromagnetics capabilities of the AC/DC Module are used in order to evaluate the optical eigenfunctions and ...
Simulation of Optical Ring Resonator Based on Lithium Niobate on Insulator
H. Kumar [1], V. Janyani [1], B. Oleh [2], U. Serhij [2], S. Dmytro [2], G. Singh [1],
[1] Dept. of Electronics and Communication Engg., Malaviya National Institute of Technology Jaipur, India
[2] Inst. of Tele. Radioelectronics and Electronic Engg.,Lviv Polytechnic National University, Lviv, Ukraine
In this paper, all optical microring resonator based on Lithium Niobate on Insulator (LNOI) has been proposed. LNOI has high refractive index contrast and also show better electro-optic & acousto-optic effects. The optical ring resonator resonates when the optical path-length of the ring is equal to the integral multiple of the wavelength. The Wave Optics Module of COMSOL Multiphysics® software ...