Lumerical FDTD Note for Optical Simulation

Here talking about how to do Optical Diffraction Simulation by Lumerical FDTD software. Here Only write some text, maybe I will prepare more detail to clearly explain in future.

What’s FDTD?

FDTD is a simulator within Lumerical’s DEVICE Multiphysics Simulation Suite, the world’s first multiphysics suite purpose-built for photonics designers. The DEVICE Suite enables designers to accurately model components where the complex interaction of optical, electronic, and thermal phenomena is critical to performance.

1. Open FDTD

• Initial project is 3D project

2. Add Simulation Region

• Background index
• Geometry
• Mesh settings
• Boundary conditions
• z direction use PML
• x, y direction use Periodic

if want to simulate tilt angle light sourse (like SA)
we must use Bloch

3. Add Structure

• Geometry
• Material index
• Rotations

4. Add Source

• General
• Plane wave

• angle, direction

• Geometry

• Wavelength

5. Add Monitor

• Refractive index
• Movie
• Refractive index

6. loop

• sweep