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CST STUDIO SUITE Optical Device Simulation Plasmonics and nanophotonics E-field in a grating coupler.[1]. Total length is about 185 um, or roughly 1,000 wavelengths. Optical devices are already key components in many areas, such as communications, remote sensing, or medical applications, and their role will only increase in the future. Simulating such devices helps in optimizing their efficiency and in reducing cost of design and development. With its powerful solvers and user-friendly interface, CST® STUDIO SUITE® offers a unique platform for handling such challenges. Complete Technology CST STUDIO SUITE offers a wide range of solvers, including FIT/FDTD, FEM, MoM/BEM, ACA, MLFMM, and TLM. They can all be accessed through the same GUI and applied to the same model – often without any changes to the model. This gives the user a unique capability to choose the best performing algorithm for the device and to cross-check results from different solvers for verification. CST’s flagship time domain solver is based on FIT (a generalized version of FDTD) and includes a conformal meshing scheme (PBA®, introduced in 1998). Graphical user interface CST revolutionized the microwaves & RF simulation world in 1998 when it introduced its first interactive and user-friendly GUI. Its most recent version has built on this with a modern ribbon GUI and versatile modeling tools. It provides all necessary tools for the user to build even complex devices, or to import them from the a wide range of CAD formats. Every model can be parameterized for parameter studies and optimization. No programming skills are necessary, but powerful macro scripting is available for those who prefer it. [2] “ Visible wavelength silicon nitride focusing grating coupler with AlCu/TiN reflector” by Sebastian Romero-García, Florian Merget, Frank Zhong, Hod Finkelstein, and Jeremy Witzens, Optics Letters Vol. 38, No. 14, p. 2521, July 15, 2013. Optical Multiphysics Thermal losses, both wanted and unwanted, play an important role in many optical applications. CST STUDIO SUITE includes stationary and transient thermal solvers that take the power loss from previous EM simulations as input. The thermal results can be fed back to the EM simulation (e.g., to consider temperature dependent material properties) or used as input to simulate deformation caused by thermal stress. All solvers are accessed through the same GUI and can be applied to the same model file. Splitter/combiner for Silicon photonic integrated circuits (PIC). High Performance Computing (HPC) Some optical applications require simulating electrically extremely large structures. Typical examples include grating couplers or wave guide bends. This can lead to extremely long simulation times or even make simulation on a single computer infeasible. CST offers various high performance computing (HPC) options: GPU computing provides a considerable speedup and MPI allows large cluster simulations using billions of mesh cells. Even models that run reasonably fast on a single machine can benefit from HPC options: Distributed Computing (DC) allows to run multiple parameter combinations in parallel on multiple machines, which can speed up parameter studies and optimizations considerably. All options can be combined to maximize performance. A system of plasmonic nano antennas. [2] “In my group we frequently use CST for our studies on optical metamaterials and plasmonics, and we love it for its user friendliness, the simulation accuracy, and the flexibility in modeling complex problems.” A. Alù, Associate Professor, University of Texas at Austin [2] “Giant birefringence in optical antenna arrays with widely tailorable optical anisotropy” by M. A. Kats, P. Genevet, G. Aoust, N. Yu, R. Blanchard, F. Aieta, Z. Gaburro, and F. Capasso, arXiv:1206.6792. www.cst.com Multiphysics simulation of a photonic crystal [3] in CST STUDIO SUITE 1) Electromagnetic simulation. The FEM-based Frequency Do main Solver calculates the fields and losses in the structure. 2) Temperature simulation. The fields are then used to calculate the steady-state temperature distribution. 3) Thermal expansion (exagge rated plot). The deformation can then be imported back into EM simulation for sensitivity analysis. [3] Tuning the resonance of a photonic crystal microcavity with an AFM probe” by I. Märki, M. Salt and H. P. Herzig, OPTICS EXPRESS 2969 Vol. 14, No. 3 April 2006 . www.cst.com Optical CST STUDIO SUITE features Complete Technology for EM simulation ■■ FIT/FDTD FEM TLM Optical switch employing the non-linear behavior of a Si waveguide. The output is switched by locally applying an external field to part of the waveguide, changing the refractive index in one of the straight sections. The resulting change in phase leads to destructive interference in either the upper or the lower output channel. MoM/BEM, MLFMM ■■ Multiphysics thermal and mechanical solvers ■■ High-performance computing (HPC) support GPU acceleration Distributed computing MPI cluster computing ■■ ABOUT CST tools CAD import/export ■■ Automatic parameter sweep and optimization tools Founded in 1992, CST offers the market’s widest range CST STUDIO SUITE is the culmination of many years of Solver hybridization through System Assembly and Modeling of 3D electromagnetic field simulation tools through research and development into the most accurate and (SAM) a global network of sales and support staff and repreefficient computational solutions for electromagnetic ■■ User-friendly interface sentatives. CST develops CST STUDIO SUITE, a package designs. From static to optical, and from the nanoscale ■■ Comprehensive post-processing library of high-performance software for the simulation of to the electrically large, CST STUDIO SUITE includes tools ■■ Full 3D field visualization electromagnetic fields in all frequency bands, and also for the design, simulation and optimization of a wide Toroidal Field results for a whispering gallery mode in a toroidal ■■ Automation with VBAcomplementary and MATLAB sells and supports third-party products. range resonator: of devices. Analysis is not limited to pure EM, resonator. but Its success is based on a combination of leading edge can also include thermal and mechanical effects and technology, a user-friendly interface and knowledgecircuit simulation. CST STUDIO SUITE can offer consiable support staff. CST’s customers are market leaders derable product to market advantages such as shorter in industries as diverse as telecommunications, defense, development cycles,thanks virtual prototyping before physical “CST STUDIO SUITE is a great tool for plasmonics and nanophotonics research, automotive, electronics and healthcare. Today, the trials, and optimization instead of experimentation. to a combination of a user-friendly interface and many advanced simulation modules.” company enjoys a leading position in the high-frequency P. G. Kik, Professor of Optics CREOL, University of Central 3D Associate EM simulation market andatemploys 280 sales, deve- Florida Further information about CST is available on the web at lopment, and support personnel around the world. www.cst.com ■■ Trademarks CST, CST STUDIO SUITE, CST MICROWAVE STUDIO, CST EM STUDIO, CST PARTICLE STUDIO, CST CABLE STUDIO, CST PCB STUDIO, CST MPHYSICS STUDIO, CST MICROSTRIPES, CST DESIGN STUDIO, CST BOARDCHECK, PERFECT BOUNDARY APPROXIMATION (PBA), and the CST logo are trademarks or registered trademarks of CST in North America, the European Union, and other countries. Other brands and their products are trademarks or registered trademarks of their respective holders and should be noted as such. CST STUDIO SUITE® is a CST® product. CST – Computer Simulation Technology AG, Bad Nauheimer Str. 19, 64289 Darmstadt, Germany