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Updated: Feb 13, 2026
08:06
Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications
Published on: June 2, 2017
14.6K
Summary
This study revises resonance theory for Kretschmann and Otto configurations. Enhanced electromagnetic fields and reflectance dips are independent phenomena, not solely due to surface plasmon-polariton resonance.
Area of Science:
- Optics and Photonics
- Condensed Matter Physics
- Electromagnetism
Background:
- Kretschmann and Otto configurations traditionally explain phenomena via surface plasmon-polariton (SPP) resonance.
- Enhanced electromagnetic fields and reflectance dips under total internal reflection are key observations.
- SPPs are eigenwaves at a single metal/dielectric interface.
Purpose of the Study:
- To revise the established resonance theory for Kretschmann and Otto configurations.
- To rigorously analyze the physical origins of enhanced fields and reflectance dips.
- To clarify the relationship between these phenomena and SPP resonance.
Main Methods:
- Mathematical analysis of electromagnetic field interactions.
- Theoretical investigation of optical phenomena in metal/dielectric systems.
- Re-evaluation of resonance conditions in plasmonics.
Main Results:
- Field enhancement and reflectance decrease are shown to be independent physical phenomena.
- These effects occur under distinct and separate conditions.
- Neither phenomenon directly corresponds to SPP resonance in these configurations.
Conclusions:
- The conventional attribution of enhanced fields and reflectance dips to SPP resonance is revised.
- Surface plasmon-polariton resonance manifests differently in Kretschmann and Otto configurations.
- A more nuanced understanding of light-matter interactions at interfaces is proposed.
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