Nanoparticle

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Finite-Difference Time-Domain Simulation Design

Nanoparticle (FDTD)

Using OptiFDTD the transmission spectrum of a gold nanoparticle can be calculated.

 

 

FDTD - OptiFDTD transmission spectrum

 

 

 

The simulation can begin using a 64-bit calculation engine where the user can only see a progress bar which allows us to cut down on CPU and memory overhead which is critical for running larger designs.

 

In 32-bit mode the real-time field data can be observed. The electric field can be viewed in 3 dimensions or in 2 dimensional topographic view.

 

In 2D you can see the field patterns generated by the interaction between the input plane wave and the nanoparticle intensity values can be referenced by the color palette on the right hand side. Below you can see that the field is significantly enhanced around the nanoparticle surface.

 

FDTD - Nanoparticle patterns generated by the interaction between the input plane wave and the nanoparticle intensity

 

 

 

FDTD - Nanoparticle plane wave and the nanoparticle intensity

 

 

 

Observation points can also be analyzed. Below you can find the time domain and frequency domain responses.

 

 

FDTD - Nanoparticle - time domain and frequency domain responses.

 

 

 

The observation area can also be analyzed. Power transmission ratios and normalised powers for each wavelength can be computed. Each field component can be analyzed individually.

 

 

 

FDTD - Power transmission ratios and normalised powers

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OptiFDTD Manuals

Webinar: Optical Sensor Design using OptiSystem

March 16, 2017

The theory and implementation of applications to LIDAR, fiber-optic gyroscopes and fiber…

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