This paper establishes theoretical bounds on scattering amplification for multi-channel Mie resonance configurations, integrating optical theorem constraints, energy conservation, and non-Hermitian scattering theory. It derives upper limits for total scattering cross-sections, revealing that single-channel bounds can be exceeded through coherent multipolar interference while remaining constrained by fundamental conservation laws.
Key findings
Establishes theoretical bounds on scattering amplification for multi-channel Mie resonance configurations.
Derives explicit upper limits for total scattering cross-sections in multi-channel systems.
Shows that single-channel bounds can be exceeded through coherent multipolar interference.
Optimal scattering amplification requires precise engineering of modal coupling coefficients and quality factor distributions.
Limitations & open questions
The study focuses on theoretical bounds and requires further experimental validation.
The analysis may not account for all practical considerations in real-world photonic device design.