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Mie Scattering Analog Circuit Emulator
Emanuele Corsaro1,2, Marco Balato1, Giovanni Miano1,3
1Università degli Studi di Napoli Federico II, Department of Electrical Engineering and Information Technology, via Claudio 21, Napoli 80125, Italy.
Physical Review Letters
|June 22, 2026
Summary
Researchers created an analog circuit emulator for Mie scattering, accurately reconstructing electromagnetic wave interactions with dispersive spheres. This platform enables novel designs for dispersion-engineered optical scatterers.
Area of Science:
- Physics
- Electromagnetism
- Materials Science
Background:
- Mie scattering explains light interaction with particles.
- Understanding light behavior in dispersive materials is crucial for optical technologies.
Purpose of the Study:
- To develop and validate an analog circuit emulator for Mie scattering.
- To model electromagnetic wave interactions with temporally dispersive spheres.
Main Methods:
- Utilized a modular lumped-element network for the emulator.
- Employed generators and filters to set excitation conditions.
- Incorporated resistor-inductor-capacitor networks to represent material dispersion and radiation properties.
Main Results:
- Successfully reconstructed the full scattering response of dispersive spheres.
- Demonstrated a direct correspondence between optical power and circuit power.
- Validated optical power conservation at the circuit level.
Conclusions:
- Established an experimentally accessible platform for Mie scattering research.
- Provides a novel method for designing and exploring dispersion-engineered scatterers.
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