Plasmonic Jerusalem Cross Shaped

中文/English

*Experiment data refer to paper :

Due to the paper don't have the materials parameter of experiment. The simulation parameter of gold and SiN are use general values. The simulation and experiment may lead to a little different results. (for example, the attenuation rate of gold will affect the intensity of reflection) 


Comparison & Reference：
Dual-band plasmonic resonator based on Jerusalem cross-shaped nanoapertures
Arif E. Cetin, Sabri Kaya, Alket Mertiri, Ekin Aslan, Shyamsunder Erramilli, Hatice Altug, Mustafa Turkmen
Photonics and Nanostructures - Fundamentals and Applications 2015 15, 73-80
https://www.sciencedirect.com/science/article/pii/S1569441015000292


Example results and CAD download

https://drive.google.com/open?id=1-5BE72176qn7LGgmU4sszQUpIjbRc3HJ

*.FCstd is the save file of FreeCAD




Add the boundary of the CAD files (FreeCAD)


Reference : 3D-CAD Simulation & Examples


Define Parameters

A.Main-Setup

1. Selected the simulation dimension.

2. Define total x, y, z length that equal to CAD, and then set a appropriate resolution.

3. Import CAD files.

4. Define the material of each CAD.

5. Press【建立網格 Cad to Grids (Create)】button to create simulation grids.



Due to the paper don't have the materials parameter of experiment. The simulation parameter of gold and SiN are use general values. The simulation and experiment may lead to a little different results. (for example, the attenuation rate of gold will affect the intensity of reflection)

*The dielectric constant of gold is taken from this paper,

Aleksandar D. Rakić, Aleksandra B. Djurišić, Jovan M. Elazar, and Marian L. Majewski, "Optical properties of metallic films for vertical-cavity optoelectronic devices," Appl. Opt. 37, 5271-5283 (1998) , http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-22-5271

* SiN (Silicon Nitride) Dielectric Constant define 7,

Reference: http://www.mit.edu/~6.777/matprops/pecvd_sin.htm


setup the dielectric constant of metal gold (using Electrical Model 1)

instruction webpage : Electric & Magnetic Models


The dielectric constant of gold in this simulation can be obtain by press "預覽 Preview" button in above figure




B.Boundary Conditions


A. Define the boundary conditions

B. Press the【創建 (Create)】button => Create the total grid size (Include the boundary condition & add space)


C.Wave & Observation

The incident wave is linear polarization in y axis (pis=90) from upper side(theta =180).

Reflection Spectrum observation : + Z direction

Transmission Spectrum observation : - Z direction


instruction webpage: DFT (Observation Range)


D. Probe & Lumped

None, press 【創建(Create)】 button



E. Geometries. Design


Checked out the simulation geometries, and then press 【輸出 Output】button to output the geometries files

Data_Materials.csv // (simulation index of structures)



F.Spectrum & Field Pattern

1. Set the Spectrum Analysis & Wavelength range

2. Check out the source



G.Calculation

1. Set the simulation time setp

2. Save parameters

3. Calculation

H.Result Analysis

★(Result Analysis)：

頻譜 (Spectrum) : Analysis the spectrum

*Experiment data refer to paper :

Due to the paper don't have the materials parameter of experiment. The simulation parameter of gold and SiN are use general values. The simulation and experiment may lead to a little different results. (for example, the attenuation rate of gold will affect the intensity of reflection) 


Comparison & Reference：
Dual-band plasmonic resonator based on Jerusalem cross-shaped nanoapertures
Arif E. Cetin, Sabri Kaya, Alket Mertiri, Ekin Aslan, Shyamsunder Erramilli, Hatice Altug, Mustafa Turkmen
Photonics and Nanostructures - Fundamentals and Applications 2015 15, 73-80
https://www.sciencedirect.com/science/article/pii/S1569441015000292


Example results and CAD download

https://drive.google.com/open?id=1-5BE72176qn7LGgmU4sszQUpIjbRc3HJ

*.FCstd is the save file of FreeCAD