scholarly journals Broadband localized electric field enhancement produced by a single-element plasmonic nanoantenna

RSC Advances ◽  
2017 ◽  
Vol 7 (4) ◽  
pp. 2074-2080 ◽  
Author(s):  
Zhengdong Yong ◽  
Chensheng Gong ◽  
Yongjiang Dong ◽  
Senlin Zhang ◽  
Sailing He
Keyword(s):  
Finite Difference ◽  
Electric Field ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Field Enhancement ◽  
Multipole Expansion ◽  
Single Element ◽  
Electric Field Enhancement ◽  
Difference Time ◽  
Novel Design

We propose a novel design of a broadband plasmonic nanoantenna, investigate it numerically using finite-difference time-domain methods, and explain its performance using the analysis of charge distribution in addition to a multipole expansion.

Optimization of electric field enhancement of Ag@SiO2 trimer nanospheres by finite difference time domain method

2019 ◽  
Vol 495 ◽  
pp. 143547 ◽  
Author(s):  
Anitharaj Nagarajan ◽  
Aruna Priya Panchanathan ◽  
Pandian Chelliah ◽  
Hiroaki Satoh ◽  
Hiroshi Inokawa
Keyword(s):  
Finite Difference ◽  
Electric Field ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Field Enhancement ◽  
Time Domain Method ◽  
Electric Field Enhancement ◽  
Domain Method ◽  
Difference Time

FDTD Modelling of Triangular Gold Nanoparticle Pairs

2014 ◽  
Vol 703 ◽  
pp. 220-223
Author(s):  
Yang Fan
Keyword(s):  
Electric Field ◽  
Gold Nanoparticle ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Fdtd Method ◽  
Field Enhancement ◽  
Electric Field Enhancement ◽  
Plasmon Resonances ◽  
Simulation Results ◽  
Difference Time

The optical properties of triangular gold nanoparticle pairs are investigated by numerical simulations using Finite-difference time-domain (FDTD) method. The simulation results show the significant red shifts of plasmon resonances as the size of nanoparticle is increased. The large electric field enhancement is also verified by calculating the local electric field distributions.

Simulation of Broadband Transmission Photonic Crystal Waveguide Crossing with Linear Taper

2013 ◽  
Vol 479-480 ◽  
pp. 133-136
Author(s):  
Yih Bin Lin ◽  
Rei Shin Chen ◽  
Ting Chung Yu ◽  
Ju Feng Liu
Keyword(s):  
Photonic Crystal ◽  
Finite Difference ◽  
Cross Talk ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Transmission Band ◽  
Time Domain Method ◽  
Photonic Crystal Waveguide ◽  
Difference Time ◽  
Novel Design

A novel design of photonic crystal waveguide crossing with taper structure is proposed. Simulations are performed by finite-difference time-domain method. The results show the proposed design has both high transmission and low cross talk characteristics. The transmission band and low cross talk band can be tuned to match each other by adjusting the taper structure..

An Algorithm of 3-D ADI-R-FDTD Based on Non-Zero Divergence Relationship

2011 ◽  
Vol 317-319 ◽  
pp. 1172-1176
Author(s):  
Xiu Hai Jin ◽  
Yi Wang Chen ◽  
Pin Zhang
Keyword(s):  
Magnetic Field ◽  
Finite Difference ◽  
Electric Field ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Fdtd Method ◽  
Memory Requirement ◽  
Alternating Direction ◽  
Relationship Of ◽  
Difference Time

In this letter, an alternating-direction reduced finite-difference time-domain (ADI-R-FDTD) method is presents. It is proven that the divergence relationship of electric-field and magnetic-field is non-zero even in charge-free regions, when the electric-field and magnetic-field are calculated with alternating-direction finite-difference time-domain (ADI-FDTD) method in 3 dimensions case, and the expression of the divergence relationship is derived. Based on the non-zero divergence relationship, the ADI-FDTD method is combined with the reduced finite-difference time-domain (R-FDTD) method. In the proposed method, the memory requirement of ADI-R-FDTD is reduced by1/12 of the memory requirement of ADI-FDTD averagely in 3D case. The formulation is presented and the accuracy and efficiency of the proposed method is verified by comparing the results with the conventional results.

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