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Getting the Mie Simulator application

Download the application from CodePlex:

  • Download the latest version from Downloads
  • Once the zip file has been downloaded, extract or unzip contents
  • The download files that include MieSimulator_v1_05R2.exe executable. Double click and run the application.

 

 

Specifying inputs for "Mono Disperse" distribution

Specify the diameter of sphere in μm.  This tool allows sphere diameters from 0.1nm to 300μm. Provide the concentration (number density) as number of spheres in 1mm3 or volume fraction. The volume fraction can be calculated by multiplying  sphere concentration and sphere volume. An error message appears when the volume fraction exceeds 1mm3.  After running a simulation, ±5Margin slider can be used to increase or decrease the concentration or volume fraction. This provides an opportunity to quickly calculate μs and μs' for small changes of concentration or volume fraction. Specify the refractive index of the sphere and the medium. The tool calculates the relative refractive index that required for the Lorentz-Mie solution.

 

 

Specifying inputs for "Poly Disperse" distribution

Specify the sphere distribution. Two distributions are supported in this tool: Log Normal and Gaussian.  Provide the mean diameter and the standard distribution of the distribution. Specify the fractional volume occupied by all the spheres in a volume of 1mm3. Assign number of discrete sphere sizes. Click "Show Distribution" button to check the number density distribution (number of spheres in a volume of 1mm3). Current version of the tool only supports single refractive index for all sizes of poly disperse spheres.

 

 

Assigning a single wavelength

A single wavelength can be assigned by specifying similar values to "Start" and "End" wavelengths. This tool allows wavelengths from 50nm to 3000nm.

 

 

Fitting reduced scattering coefficient curve

The reduced scattering fitting function specified in Steve L Jacques's review paper ("Optical properties of biological tissues: a review" Phys. Med & Bio. 58(2013) R37-R61) is used in this tool. After running a simulation, click on the "μs' Power Law Fitting" tab. The fitting parameters, fRay and bMie can be calculated automatically or manually.The "Best Fit" button calculates the fitting parameters automatically by calculating the minimum mean squared error (M.S. Error). The sliders "fRay" and "bMie" are available for manual estimation. The factor A is the value of the reduced scattering coefficient at 1000nm. 

 

 

Phase function, S1 and S2 values at different wavelengths

Slide the wavelength slider to check the phase function, S1 and S2 values at different wavelengths. Angular division dθ, can be either 0.5° or 0.1°.

 

 

Zoom plots, Display data and save data

Click on the graph and use the scroll wheel to zoom in and zoom out data. The plotted data can be displayed in a text window or saved in a .txt file. When Phase Function, S1 and S2 are selected, the values at a specific wavelength (location of the wavelength slider) will be saved.

 

 

Last edited Aug 12, 2015 at 9:52 PM by janakarana, version 6

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