Photonics

Photonics

2019a Release Notes

    • Guanhui Wang
      Ansys Employee
      Shared FeaturesnApplication GallerynThe Application Gallery is available from within Lumerical tools and includes proven design and optimization examples for applications such as grating couplers, ring modulators, photonic resonators, CMOS image sensors, and many more. Photonic component designers can now take advantage of validated examples, delivered in-product, providing a significant head start in their design work. Designers uniquely benefit from in-product discovery and download of examples that are created, improved and enhanced on a continuous basis. Check out the Application Gallery here: Applications Gallery 32.nUpgraded New-Project OptionsnAll products feature an upgraded new-project dialog, showcasing the Application Gallery examples with full-text search, and quick links to open recent projects or examples. Use your Lumerical.com 1 login to quickly download and open the examples in-product. Find out more on this KB page: New Project Window 10.nOptical Material Import from refractiveindex.info (Optical Solvers)nSampled data optical material properties can now be directly imported from files in the YAML (.yml) format, which is the format used in the refractiveindex.info database. The import utility will automatically select the appropriate units and display reference information when it is available. For more information, please visit the Knowledge Base: Creating Sampled Data Materials 12 (under the "Adding a new material from a .yml data file" section).nImprovements to GDSII Export CommandsnWhen exporting shapes to a GDSII file, the layer specification can now be augmented with datatype information Check out the script commands for GDS export (and import) on this KB page: GDSII 14.nIntegration with External Script File EditorsnThe script editor in all products now watches your file for changes on disk, with warnings and single click to reload. This will help users that prefer their own editor, or who are working with a script in multiple windows. Check out this new feature by downloading the latest versions of your Lumerical products from here: Product Downloads 20.nIntel MPInFor photonic component designers utilizing HPC resources to accelerate simulations, Lumerical’s physical component solvers can now target execution through Intel’s MPI commands. This feature is available in Lumerical FDTD Solutions, MODE solutions and DEVICE, and enables distributed computing on advanced processors with high numbers of cores. The Intel MPI can be set up in the Resource Configuration 21 of all component solvers.nImproved Python APInNew capabilities have been added to the python API. (Learn about Lumerical Python API here: Python API 29)nConstructors – When adding an object, the object’s properties can now be set through constructor parameters.nConstructors – When adding an object, the add___ command now returns a sim object that be used to manipulate that object.nDict access – Sim object properties can now be accessed using dict-style notation.nDeep access – Nested sim object properties can now be accessed using dot or dict-style notation.nHierarchical access – Parents and children of sim objects can now be accessed using a sim object method.nImproved Performance for Locating Resonances in High-Q CavitiesnThe new script command findresonances allows users to extrapolate limited time-domain signals to determine resonance frequencies and Q-factor. This feature can substantially reduce simulation time when studying structures with resonant modes, including ring resonators, photonic crystal cavities, Bragg microcavities, and others. The following examples demonstrate the use of this new command: whispering gallery modes in a GaN rod 7 and plasmonic resonator 8.nn
    • Guanhui Wang
      Ansys Employee
    • Guanhui Wang
      Ansys Employee
      To continue:nBug FixesnShared FeaturesnWaveguide object (Bezier curve) can accept poles in any order.nProgram does not crash when providing wrong input to a planar solid.nstackrt does not give an incorrect error message when the number of layers and the number of frequency points is the same.nImproved concatenation of nested sweep results.nVector plot gets updated with vector or scalar operation.nFDTD Solutions - Version S2019A-R1 (8.21.1781)nFixed "FDTD version mismatch" test in resource configuration test reports.nfdtd-run-local.sh & fdtd-run-local.bat includes -t flag to improve CPU usage.nThe script command workspace shows all data types.nUpdated fdtd-pbs-template.sh script.nOverlap function unfolds data from monitors when using symmetric boundary conditions.nMODE Solutions - Version S2019A-R1 (7.13.1781)nImproved validation of parameter sweeps.nImproved GUI behavior in the EME setup tab inside the EME solver edit window.nMultiple reminders for new version of software are not shown.nMulti-coefficient material fitting works properly when plotting option Show material data is unchecked.nConsistent labeling of farfield dataset.nCalculation in model passes correct value to EME span setting.nProperties that cannot be accessed in parameter sweep are hidden in lists.nDEVICE - Version S2019A-R1 (7.3.1781)nInstallation issues with newer versions of Visual C++ 2015 has been fixed.nFixed slow calculation of partitioned volume for reported cases.nINTERCONNECT - Version S2019A-R1 (8.5.1781)nStandard file browser is used when looking for a file from the Property View editor.nINTERCONNECT session can be opened from any product using command opensession(interconnect).nProject files with relative path can be loaded using the script command load.nOptimization in the S parameter element reduces time to find filter coefficients in time-domain simulations.nFixed broken link to Compound element help file.nnn
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