COMSOL Day: Optics & Photonics
See what is possible with multiphysics simulation
Join us and your fellow engineers and simulation specialists for COMSOL Day: Optics & Photonics for an introduction to the COMSOL Multiphysics® software`s capabilities and to explore modeling optical systems on various scales.
Discover modeling techniques for wave optics and ray optics, simulating quantum- and semiconductor-optical systems, interaction of light with matter on a thermal and electronic level.
You will hear about how simulation is being used by the experienced leaders in photonics industry and gain insight into the latest research in academia.
Upcoming projects, challenges, and focuses related to the simulation in the Optics & Photonics will be at the center of discussion.
Wheather you are considering using COMSOL Multiphysics® in your organization and want to see how it works, or an existing user looking to catch the latest news, this event has something for you.
Feel free to invite your colleagues. View the final schedule below and register for free today!
An overview of current challenges in simulating optics and photonics will start this COMSOL Day. This includes applying numerical modeling to systems ranging from the subwavelength scale to optically large systems. Robust modeling of these phenomena leads to better design and optimization of applications dependent on optical wave communication; media conductive to guiding photonic, microwave, and nanowave electromagnetic radiation; plasmonic materials and metamaterials; devices used in optical sensing and imaging; applications dependent on laser-material interaction; energy conversion through photonic means; and lighting.
Simulation applications enable you to expand the power of modeling by providing control over design and optimization decisions to colleagues who require simulations for such tasks. You can create user-specific modeling user interfaces and platforms best suited to your colleagues' simulation needs while also integrating ease of use into apps, making them applicable for traditionally nonmodeling engineers.
During this Tech Café, you will be able to discuss how best to develop simulation apps together with COMSOL engineers and other colleagues from industry. A selection of simulation applications from the field of wave and ray optics, including fiber optics, plasmonic wire gratings, a solar dish receiver designer, and a Si solar cell that combines the simulation of ray optics with semiconductor physics, will be available to be demonstrated and discussed on demand.
In this session, we will present an overview of the Wave Optics Module, especially when subject to other physics phenomena. This module solves the Maxwell equations to simulate an optical wave’s propagations, reflections, refractions, absorptions, scatterings, diffractions, and other optical phenomena in space dimensions that are similar in size or larger than the propagating wavelength. Typical applications are waveguides, gratings, photonic crystals, nanoantennas, resonators, lenses, couplers, modulators, filters, holograms, and optical fibers. In particular, we will cover wave optics multiphysics effects such as electro-optical, stress-optical, and semiconductor-optoelectronic couplings.
Modern optical systems are often required to operate in harsh environments, including high altitudes, space, underwater, and in laser and nuclear facilities. Such optical systems are subjected to structural loads and extreme temperatures. The most accurate way to fully capture these environmental effects is through numerical simulation via a structural-thermal-optical performance (STOP) analysis. STOP analysis is the quintessential multiphysics problem and will be discussed during this Tech Café. You will be able to share your experiences and ask questions of COMSOL engineers responsible for the implementation of features used to model such phenomena.
Hamed Sattari, CSEM
Silicon photonic MEMS promise for low-loss, low-power, and scalable photonic integrated circuits addressing emerging needs in the telecommunication domain. We present the implemented simulation methodology to design an analog phase shifter based on silicon photonic MEMS technology. The operation principle is based on a two-step parallel plate electrostatic actuation mechanism to bring a vertically movable suspended waveguide into proximity of the bus waveguide and tune the phase of the propagating coupled mode by tuning the vertical gap. Simulations predict that π phase shift can be achieved with an actuation voltage of 19 V, while the optical signal can be coupled between the moving waveguide and the bus waveguide with low loss in a wide wavelength range from 1.5 μm to 1.6 μm, keeping the average insertion loss below 0.3 dB.
First, optical simulations were performed in the RF and Wave Optics modules to define the waveguide geometries for an efficient phase shifting. Then mechanical and electrostatic simulations were performed in the Structural Mechanics, AC/DC, and MEMS modules to investigate deformation and failure modes of the component. By postprocessing of the simulations results, the actuation curve of the component was extracted.
This session will focus on modeling multiphysics phenomena using the Ray Optics Module, typically for systems encompassing reflection, refraction, or absorption phenomena where the geometry is large in comparison to the propagating wavelength. This module is used to model many applications, including lenses; cameras; interferometers; telescopes; monochromators and spectrometers; solar radiation and energy harvesting; laser focusing systems; cavity stability; graded index media; and lighting systems for rooms, buildings, and the automotive sector. We will explore modeling multiphysics phenomena based on ray tracing, such as in ray heat sources, and the effects of temperature gradients and deformed geometries on wave propagation. This is best simulated through the application of high-fidelity structural-thermal-optical performance (STOP) analysis.
Quantum effects are becoming increasingly exploited in technical applications such as computing processes, optical sensors, photonic-based communication media, and security systems. They are prevalent in applications such as the determination of photovoltaic cell efficiency and even the color of light-emitting diodes (LEDs). In this Tech Café, we will explore the interaction between electronic and optic phenomena down to the level of single photons. The Schrödinger Equation interface in the Semiconductor Module will be an integral part of this Tech Café, as it allows users to model quantum-confined systems such as quantum wells, wires, and dots. In addition, optical transitions can also be incorporated into this interface to simulate a range of devices, such as solar cells, LEDs, and photodiodes.
Aurélien Maurer, Kejako SA
Ophthalmology has been relying on geometrical optics for centuries, from the simplest glasses to intraocular implant designs. The recent decades have seen the emergence of numerical simulation like ray tracing, but is it enough alone to understand and design the best solutions for the patient? Since 2015, Kejako has been extensively using multiphysics simulation for the development of an innovative femtosecond laser surgery for presbyopia. Through our different simulation works, we explore in this talk the key benefits and perspectives of coupling optics with other physics for the understanding, diagnosis, and design of solution and safety.
The modeling of space- and time-varying heat application and transfer in manufacturing processes by using lasers will be covered during this session. This involves the manipulation of source terms in the specification of boundary and volumetric domain conditions through solving, among others, the Beer–Lambert law. The modeling of complicated motion paths will also be covered.
Applications of these demonstrated modeling techniques are useful for modeling laser heating processes, and can also be extended to include the modeling of ablation, phase change, and melt-pool simulations. Together, these can be applied to simulating medical and aesthetics treatment, noninvasive cancer surgery, welding, annealing, semiconductor processing, material polishing and microshaping, selective laser melting, and sintering.
In this Tech Café, you will be able to discuss how best to model light sources, such as sunlight and LEDs, in applications such as rooms, buildings, and small enclosed spaces like automobile cabins. Along with fellow colleagues and COMSOL technical staff, we will discuss how the reflection of light from building surfaces, the propagation of light in pipes and tubes, and other applications can be simulated through manipulating the import of light source data from, e.g., IES files, the superposition of light sources, and the calculation photometric quantities.
Patrick Namy and Vincent Bruyere, SIMTEC
Laser processing has a wide application range, from welding to surface treatment, including drilling and additive manufacturing. As the laser matter interaction is a complex phenomenon, accurate numerical models have been developed by SIMTEC to describe these various processes used in industrial manufacturing. As the French leader of COMSOL Certified Consultants, SIMTEC assists industrial professionals in their research using innovative approaches. SIMTEC has acquired a strong experience in laser processes modeling by working through several industrial applications and by being involved in a European consortium related to laser surface texturing (SHARK project). An example of a strong collaboration with one of our clients is presented here. A laser processing thermal-hydraulic model is developed to predict the dimensions of the heat-affected and melted zones as well as the formation of porosities. Many physical phenomena are numerically considered within a two-phase flow approach like the “recoil pressure” generated by the vaporization process, the capillary and Marangoni effects, and thermodynamic phase changes. This numerical model is validated through experimental data comparisons concerning the size of heat-affected zones and the surface temperatures. Different applications and numerical results are finally presented and discussed to emphasize the use of this type of approach.
Computational modeling and simulation are an integral part of industrial and academic research, development, and optimization to produce better products faster, while expanding the boundaries of scientific knowledge. Trends in innovation and simulation involve the ability to model complex coupled phenomena, while engaging various stakeholders, including nonsimulation experts. In this panel discussion, experts from industry, academia, and government organizations will showcase how they are using multiphysics simulation to improve products by creating representative models for complex phenomena, while turning them into easy-to-use simulation apps. Attendees are welcome to ask the panelists questions and hear perspectives on their topics of interest.
Managing Director, Switzerland
Principal Applications Engineer
Technical Product Manager
Senior Technical Product Manager
Managing Director, Japan
Technical Sales Manager
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