This website is a simple Mie scattering calculator for spherical nanoparticles. It lets you calculate scattering, absorption, and extinction efficiencies based on material optical constants, particle size and environment refractive index of the surrounding medium.

Big thanks to the projects and people that made this possible:

• The CNRS Mie calculator developers — this tool was heavily inspired by their calculator
• Misha Polyanskiy for the amazing refractiveindex.info database.
• Ivan Toftul for the convenient refractiveindex Python library.
• The miepython developers for the Python implementation of the Mie scattering calculations.

This project basically stands on the shoulders of these tools, so thanks to everyone.