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Resonance and Hybrid Structures

Resonance and Hybrid Structures

According to the theory of resonance, if two or more Lewis structures with the same arrangement of atoms can be written for a molecule, ion, or radical, the actual distribution of electrons is an average of that shown by the various Lewis structures.
Resonance Structures and Resonance Hybrids
The Lewis structure of a nitrite anion (NO2−) may actually be drawn in two different ways, distinguished by the locations of the N–O and N=O bonds.

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Related Experiment Video

Updated: Feb 21, 2026

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

Sculpting Fano Resonances To Control Photonic-Plasmonic Hybridization.

Niket Thakkar¹, Morgan T Rea², Kevin C Smith³

¹Department of Applied Mathematics, University of Washington , Seattle, Washington 98195-3925, United States.

|October 3, 2017

Summary

Researchers developed a practical method to tune hybrid photonic-plasmonic systems using thermal annealing. This technique controls light-matter interactions, enhancing optical microresonator performance and maximizing the Purcell factor.

Keywords:

Fano interference Microresonator Purcell effect nanophotonics

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Last Updated: Feb 21, 2026

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Published on: February 25, 2017

Area of Science:

Photonics
Plasmonics
Nanoscale light-matter interactions

Background:

Hybrid photonic-plasmonic systems combine high-quality factors and low mode volumes for enhanced light-matter interactions.
Optical microresonators with metallic nanoparticles offer strong light confinement but are difficult to tune.

Purpose of the Study:

To present a practical method for tuning the coupling strength and hybridization in optical microresonator-plasmonic nanoparticle systems.
To demonstrate control over Fano resonance lineshapes and infer critical system parameters.

Main Methods:

Utilized absorption spectra measurements to determine coupling strength and hybridization.
Employed thermal annealing to control the detuning between localized surface plasmon resonance and whispering-gallery modes.
Incorporated decoherence processes to accurately model spectral evolution.

Main Results:

Successfully sculpted Fano resonance lineshapes in absorption spectra.
Demonstrated direct tuning of hybridization degree, quality factor, and mode volume via thermal annealing.
Achieved a maximized Purcell factor of 10^4.

Conclusions:

Thermal annealing provides a practical route to tailor photonic-plasmonic hybridization.
Accurate modeling requires inclusion of decoherence effects.
Optimized hybrid systems significantly enhance light-matter interaction for applications.