Multi Spheres T-matrix Studio

Python wrapper for multiple sphere T-matrix (MSTM) code and Mie theory to calculate surface plasmon resonance (SPR) spectrum and fit it to experiment.

Features

• Materials defined from constant expression, from tabulated file or from analytical formula of Rioux et al for Au-Ag;

• Simple functional contributions (linear, lorentzian, gaussian)

• Mie theory contributions

• MSTM calculations: spectra and near-field intensity

• Fitting of experimental data by any of the mentioned contributions, including combinations

• Interactive graphical user interface

• Flexible Python scripting

Contents

• Installation
  • Source code
  • Linux installation
    • Binding with MSTM
  • Windows installation
    • Binding with MSTM
  • Binding with ScatterPy
    • ScatterPy without Numba
• Manual: GUI
  • Materials
    • Materials from RefractiveIndex.Info
  • Multi-Spheres T-Matrix
    • MSTM spectrum
    • MSTM near-field
  • Mie and other contributions
  • Fitting and constraints
• Manual: Scripting
  • Materials
    • Constant Material
    • Loading from file
    • Material from numpy array
    • Material class members
      • Material
        • Material.plot()
    • Analytical formula for AuAg
      • AlloyAuAg
    • Materials from RefractionIndex.Info
      • RiiMaterial
        • RiiMaterial.count_materials()
        • RiiMaterial.filter_valid()
        • RiiMaterial.print_db_items()
        • RiiMaterial.scan()
        • RiiMaterial.select()
    • Size correction for dielectric functions
      • SizeCorrectedGold
      • SizeCorrectedSilver
      • SizeCorrectedMaterial
        • SizeCorrectedMaterial.get_gamma_corr()
  • Simple functions and Mie theory
    • Example
    • Classes
      • ConstantBackground
        • ConstantBackground.calculate()
      • Contribution
        • Contribution.calculate()
        • Contribution.plot()
        • Contribution.set_wavelengths()
      • GaussPeak
        • GaussPeak.calculate()
      • LinearBackground
        • LinearBackground.calculate()
      • LorentzBackground
        • LorentzBackground.calculate()
      • LorentzPeak
        • LorentzPeak.calculate()
      • MieLognormSpheres
        • MieLognormSpheres.calculate()
        • MieLognormSpheres.lognorm()
        • MieLognormSpheres.plot_distrib()
        • MieLognormSpheres.set_material()
      • MieLognormSpheresCached
        • MieLognormSpheresCached.calculate()
      • MieSingleSphere
        • MieSingleSphere.calculate()
        • MieSingleSphere.set_material()
  • Spheres setup
    • Example: particles aggregate
    • Classes
      • Spheres
        • Spheres.append()
        • Spheres.check_overlap()
        • Spheres.delete()
        • Spheres.extend()
        • Spheres.get_center()
        • Spheres.load()
        • Spheres.save()
      • SingleSphere
      • ExplicitSpheres
      • LogNormalSpheres
  • MSTM run
    • Example: core-shell particle
    • Class
      • SPR
        • SPR.plot()
        • SPR.set_incident_field()
        • SPR.simulate()
        • SPR.write()
  • Visualization of near field
    • Example: field distribution near two particles
    • Class
      • NearField
        • NearField.plot()
        • NearField.set_plane()
        • NearField.simulate()
        • NearField.write()
  • Non-spherical particles
    • Example
    • Classes
      • SpheroidSP
        • SpheroidSP.calculate()
        • SpheroidSP.plot_shape()
  • Fitting
    • Example: fit with Mie theory
    • Fitter class
      • Fitter
        • Fitter.add_constraint()
        • Fitter.get_extra_contributions()
        • Fitter.report_freedom()
        • Fitter.report_result()
        • Fitter.run()
        • Fitter.set_callback()
        • Fitter.set_extra_contributions()
        • Fitter.set_matrix()
        • Fitter.set_spheres()
  • Constraints
    • Parameter
    • Example: fit by core-shell
    • Constraints classes
      • Constraint
        • Constraint.apply()
      • FixConstraint
        • FixConstraint.apply()
      • EqualityConstraint
        • EqualityConstraint.apply()
      • ConcentricConstraint
        • ConcentricConstraint.apply()
      • RatioConstraint
        • RatioConstraint.apply()
        • RatioConstraint.set_ratio()

Contacts

GitHub: https://github.com/lavakyan/mstm-spectrum

E-mail: laavakyan_at_sfedu.ru