![meep fdtd meep fdtd](https://meep.readthedocs.io/en/latest/images/Yee-cube.png)
As a result, I cannot create a plane wave travelling in 'z' direction. However, for unknown reason, the source does not touch the boundary (there is a small empty space) and whatever I do, I cannot force it to touch it. This should create a plane from border to border of the matrix. 1e-6)))į.output_hdf5(meep.Ex, vol.surroundings(), output)ģD case: The source is a plane from (x,y,z)=(0, 0. Thanks to this, the plane wave is traveling unperturbed to the opposite end of the matrix (where it is reflected). Johnson 20.1 INTRODUCTION One of the most common computational tools in. Below are simple examples.ĢD case: In 2D case, the source is a line from (x,y)=(0. In 2D case, I can make the source as a line which touches the borders of the computational matrix.
#MEEP FDTD SOFTWARE#
I have problems properly setting the source in three-dimensional case. Meep (or MEEP) is a free finite-difference time-domain (FDTD) simulation software package developed at MIT to model electromagnetic systems, along with our MPB eigenmode package. First, I want to simulate a plane wave traveling through vacuum in 'z' direction. After this step, a 3D simulation can be done to get more accurate results. Lumerical Mode Solutions 2.I'm trying to use Python-Meep package to conduct some FDTD simulations. 2D simulation CAMFR Meep FDTD 3D simulation FimmWave Meep FDTD Table 1: Simulation tools used for a 2D and 3D simulation.Lumerical Mode Solutions 2.5D var-FDTD simulation of a ring-resonator.Self-coded FD-BPM simulation of a waveguide coupler implemented in Matlab.Self-coded FFT-BPM simulation of a Mach–Zehnder interferometer implemented in Matlab.Self-coded 2D FEM simulation of a microstrip implemented in Matlab.Self-coded 2D FDTD simulation using different boundary conditions implemented in Matlab.
![meep fdtd meep fdtd](https://novelresearch.weebly.com/uploads/4/4/6/8/44686989/1174847_orig.png)
#MEEP FDTD PATCH#
Self-coded 3D FDTD simulation of a patch antenna implemented in Matlab.Side Projects: FDTD, FEM and BPM Simulations In this case, light is launched from the bottom waveguide, and thus GARC exhibits reciprocal coupling. GARC coupler is also simulated using Lumerical 3D FDTD.The movies show the field propagation in the GARC coupler (from left to right: vertical cross section, the bottom waveguide, and the top waveguide, simulation done by MEEP FDTD), assuming the input field is launched from the top waveguide from the right. Precompiled packages of Meep version 1.17.1 (January 2021) with Python interface will be available for Ubuntu 21.04 ('Hirsute Hippo') in April 2021.The structure of the GARC coupler and the spectral response are shown in the following figures. The GARC coupler consists of three resonant cavities: two waveguide cavities in the horizontal direction and one cylindrical via cavity in the vertical direction. A fundamentally new GARC coupler is proposed to achieve efficient and broadband interlayer coupling.
![meep fdtd meep fdtd](https://juluribk.com/images/field_xz.gif)
Project 2: Design of Grating-Assisted-Cylindrical-Resonant-Cavities (GARC) Interlayer Couplers The RCWA-EIS calculation is 86400 times faster than 3D FDTD, which requires lots of iterations and computation memories! Here we are talking about seconds (RCWA-EIS) versus days (3D FDTD). The benefit of the RCWA-EIS method is that it solves the waveguide grating coupling problem from the in-coupling process, thus the conical incidence formulation can be used to model the angular misalignment effects.The RCWA-EIS method, implemented in Matlab and solving problem analytically, is 2000 times faster than 2D FDTD, e.g. The proposed RCWA-EIS method can be used to calculate grating coupling efficiency of various grating structures, including binary gratings, sawtooth gratings, parallelogramic gratings, volume gratings, as well as grating with bottom reflectors, etc.The new method was featured on the journal cover (Appl.The grating layer is replaced by multiple uniform slab waveguides, the equivalent index slabs, such that the field amplitudes and phases at the cover-grating interface and the grating-waveguide interface remain unchanged. A new theory, the “equivalent index slab (EIS)” method, is proposed to extend the rigorous coupled-wave analysis (RCWA) to rectangular diffraction grating involving surface waves.Project 1: Efficiency Optimization and Angular Misalignment Analysis of Interlayer Grating Couplers Details of Project 1 and 2 can be found from the publications or here.