Tidy3D Graphical User Interface (GUI)

This tutorial guides you through the basics of setting up and running FDTD simulations using a simple waveguide example in the graphical user interface (GUI). Specifically, you will learn how to create a silicon waveguide, set up a mode source to excite that waveguide using the fundamental transverse electric optical mode, and how to run the FDTD simulation to obtain the coupling efficiency and field distribution.

Precisely modeling materials is a crucial aspect of setting up FDTD simulations. This tutorial focuses on material properties and the various methods for defining materials in FDTD simulations. To illustrate these concepts, we will build and simulate an organic solar cell.

In this tutorial, we will guide you through the process of creating structures commonly used when modeling electromagnetic devices. These structures include rectangles, cylinders, spheres, and polygons. We will reproduce the results of the dielectric metasurface absorber Python notebook. Afterwards, we will test it using different resonator shapes.

This tutorial covers the sources of electromagnetic fields in FDTD simulations. You will learn about the various types of sources commonly used to drive specific simulations and how to set them up to build your FDTD models.

This tutorial will guide you through the process of using the mode solver feature to obtain field distributions and effective indices of guided waveguide modes. The proper selection of mode properties is crucial when setting up mode sources and monitors in FDTD simulations. When designing photonic devices like directional couplers, mode converters, or mode de-multiplexers, conducting a mode analysis is also an essential task.

In this tutorial, you will learn how to set up the FDTD grid to obtain accurate simulation results. We will demonstrate the differences between uniform and non-uniform grids, and how to utilize them to optimize the simulation mesh. Additionally, you will learn how to calculate the symmetric and anti-symmetric modes of a directional coupler.

When setting up FDTD simulations, a common question is how long to run them in physical time. In this tutorial, you will learn how to properly set up the run time of FDTD simulations to obtain accurate results. We will also show you how to use the shutoff condition to avoid running simulations longer than necessary

This tutorial will guide you through the process of setting up boundary conditions to truncate the simulation domain. We will use a solar cell simulation as an example to illustrate the usage of PML, PEC, Periodic, and Bloch boundary conditions.

In most FDTD simulations, field symmetries can be used to significantly reduce computation by 1/2, 1/4, or even 1/8. In this tutorial, you will learn how to set up symmetries based on the structure and source properties. As a practical example, we will show you how to properly set up symmetry conditions to excite the input waveguide of a photonic crystal slab polarization filter with both the fundamental TE and TM optical modes.

Model parameterization is a powerful tool for dynamically adjusting FDTD simulations. It is particularly useful when exploring how devices respond to changes in geometries, materials, or light properties. In this tutorial, you will explore an all-dielectric structural color metasurface and learn how to parameterize a structure and run parameter sweeps.

In this tutorial, we will guide you through importing geometries from existing 2D layouts or 3D CAD structures. This feature proves incredibly useful, allowing you to simulate final layouts of photonic devices in GDS files intended for fabrication or intricate 3D geometries in STL files. You will learn these features going though the examples of a focusing apodized grating coupler and a 2x2 MMI power splitter.

In this tutorial, you will learn how to use script objects in the Tidy3D GUI to easily create complex geometries. This feature is useful for building devices such as photonic crystals, metasurfaces, waveguide bends, and tapers. We will demonstrate how to create a photonic crystal L3 cavity.