Lesson 9 – FDTD Band Solver

FDTD Band Solver Introduction

FDTD Band Solver in OptiFDTD is a supplementary tool for the Photonic Crystal (PhC) and Photonic Band Gap (PBG) structure. Currently it employs the FDTD method and generates what is called the Band Diagram. For the transmission and reflection analysis for PhC and PBG, it is still suggested to use the conventional FDTD method demonstrated…

Photonic Crystal Structure

Step Action 1 Open the OptiFDTD Waveguide Layout Designer. 2 To create a new project, select File > New. The Initial Properties dialog box appears. 3 Click Profiles and Materials. The Profile Designer window appears. 4 Under the Materials folder, right-click the Dielectric folder and select New. A new Dielectric material dialog box appears. 5…

Band Solver Parameters

When you open the 2D Band Solver Parameters dialog box (from the layout designer Simulation menu), OptiFDTD automatically checks to see if the lattice structure exists in the layout. Available lattice structures are listed under Domain, in the Lattice Name drop-down list. Currently only 2D square lattice and 2D hexagonal lattice are supported. The FDTD…