scholarly journals AN EXTENDED FDTD METHOD FOR THE ANALYSIS OF ELECTROMAGNETIC FIELD ROTATORS AND CLOAKING DEVICES

2008 ◽  
Vol 87 ◽  
pp. 183-196 ◽  
Author(s):  
Jorge Andrey Silva-Macêdo ◽  
Murilo Araujo Romero ◽  
Ben-Hur Viana Borges
Keyword(s):  
Electromagnetic Field ◽  
Fdtd Method

Calculation of the Electromagnetic Field in a Strip Line Using FDTD Method

2004 ◽  
Author(s):  
Hideki Matsumura ◽  
Shinichiro Itoh ◽  
Tomonori Hasegawa ◽  
Takashi Iwasaki
Keyword(s):  
Electromagnetic Field ◽  
Fdtd Method ◽  
Strip Line

Distribution of Electromagnetic Field and Energy Flux in the Thin Film Solar Cell with Silver Nano-Disk Array

2013 ◽  
Vol 669 ◽  
pp. 194-203
Author(s):  
Hong Zhou ◽  
Xiao Ping Huang ◽  
Lei Zhong ◽  
Sheng Kang Ji ◽  
Yan Pang ◽  
...  
Keyword(s):  
Thin Film ◽  
Electromagnetic Field ◽  
Solar Cell ◽  
Field Distribution ◽  
Energy Flux ◽  
Thin Film Solar Cell ◽  
Incident Light ◽  
Fdtd Method ◽  
Absorption Enhancement ◽  
Electromagnetic Field Distribution

We simulate and calculate numerically the electromagnetic field and energy flux in single crystal silicon thin film solar cell coated with silver nano-disk square array by using the finite-difference time-domain (FDTD) method. Because of the surface plasmon resonance (SPR) of silver nano array, the electromagnetic field is redistributed and enhanced in the solar cell. The simulation results show that the electromagnetic field distribution and corresponding energy flux component depend on the nano array and the structure of absorbed layer in solar cell. The wavelength of the incident light relative to the nano array determine the profile of the electric field around the nano array. The electromagnetic field distribution in thin film is determined by the internal structure of solar cell. For different incident wavelengths, the electromagnetic field distribution in solar cell will changes. The energy flux named as Poynting vector also changes with the incident wavelength. To investigate the absorption of the solar cell, the normalized absorbed power at different wavelengths is calculated. Based on the SPR effect, the solar cell exhibts absorption enhancement sharply at a certain wavelength.

Predicting Multi-Order Magnetic Polaritons Resonance in SiC Slit Arrays by Mutual Inductor–Inductor–Capacitor Circuit Model

2020 ◽  
Vol 142 (7) ◽  
Author(s):  
Yanming Guo ◽  
Bo Xiong ◽  
Yong Shuai
Keyword(s):  
Electromagnetic Field ◽  
Electromagnetic Waves ◽  
Fdtd Method ◽  
Circuit Model ◽  
Radiative Properties ◽  
Field Calculation ◽  
Thermal Radiative Properties ◽  
Resonance Frequencies ◽  
Lc Circuit ◽  
Calculation Results

Abstract Magnetic polariton (MP) that couples electromagnetic waves with magnetic excitation can be predicted by equivalent inductor–capacitor (LC) circuit model. However, when the resonance frequencies of MP and surface phonon polariton (SPhP) is close, the absorption and transmission peaks predicted by LC circuit model are far different from solving electromagnetic field calculation results. In this work, absorption and transmission enhancements with a SiC slit array are theoretically demonstrated within the SiC phonon absorption band with finite difference time-domain (FDTD) method. The interactions between SPhP and MP are confirmed by electromagnetic field distributions. Mutual inductor–inductor–capacitor (MLC) circuit model is used to predict the multiorder MP resonance conditions, and the coupling between MP and SPhP is treated as a mutual inductor in MLC model. The geometric effects of SiC slit arrays are investigated and MLC circuit model works well. This study may contribute to the design and prediction of thermal radiative properties and micro-/nanostructure metamaterials thermal radiative properties database building.

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