Sub-wavelength Holes in Metallic Film
It is generally accepted that the enhanced transmission is mediated by surface plasmon polaritons (SPPs) that exhibit resonances set up by the periodicity of the array. We will calculate the transmission through sub-wavelength holes in a gold film deposited in SiO2 substrate. Surface Plasmon wave that results from the periodic array of holes will enhance…
3D Layout using Non-Uniform Mesh Introduction
Since FDTD requires that the entire computational domain be meshed, and the mesh spatial discretization must be sufficiently fine to resolve both the smallest electromagnetic wavelength and the smallest geometrical feature in the model, very large computational domains can be developed, which results in very long CPU times and huge memory usage. For normal dielectric material,…
Memory Requirement
Step Action 1 Select “Simulation 3D Using 64bit Simulator…” under the Simulation menu, 3D Simulation Parameters dialog box appears. 2 Click advanced button to check the boundary condition setting. 3 Click Spectrum button to check the spectral information setting. 4 Unselect Use Non uniform Mesh checkbox in the Nonuniform Mesh Parameters region. Click OK button to…
Non-Uniform Mesh Setting
Step Action 1 Click Parameters in the Nonuniform Mesh Parameters region of the 3D Simulation Parameters dialog box. Nonuniform Mesh Parameters dialog box appears. (refer to Figure 1) Figure 1: Nonuniform Mesh Parameters Maximum Mesh Size: The maximum mesh size value (unit in ?m) for low refractive index region. Minimum Mesh Size: The minimum mesh size value (unit…
64-bit Simulation and Post Data Analysis
Step Action 1 Click Run button in the Simulate 3D Using 64bit Simulator dialog box. 64bit simulation will start. Note: non-uniform mesh does not support 32bit simulation. 2 After the simulation, open the results in OptiFDTD analyzer. 3 Select Observation Area Analysis under Tools menu of OptiFDTD analyzer. Observation area analysis dialog box appears. 4 Select Observation…
User Defined Non-Uniform Mesh
Step Action 1 Open the layout we just designed or open the layout named “X64_Sample59_SilverParticle_User_Uniform_Mesh.FDT” in the simple folder. 2 Open the Nonuniform Mesh Parameters dialog box. 3 Click X-Direction tab, and select Load From a File. 4 Click Browse to locate the x-direction mesh file named “Sample59_x_direction_ mesh.txt” in the 64 bit sample folder.…