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Updated: Jul 14, 2025
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Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
17.0K
Hybrid Tamm and quasi-BIC microcavity modes
D S Buzin1,2, P S Pankin1,2, D N Maksimov1,2
1Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036 Russia. pavel-s-pankin@iph.krasn.ru.
Nanoscale
|October 5, 2023
Summary
Researchers explored a liquid crystal defect microcavity coupled with Tamm plasmon polaritons. This coupling creates tunable hybrid modes, offering control over light-matter interactions in photonic devices.
Area of Science:
- Photonics
- Condensed Matter Physics
- Materials Science
Background:
- One-dimensional photonic crystals offer unique light confinement properties.
- Liquid crystal defect layers can act as tunable microcavities.
- Bound states in the continuum (BICs) exhibit theoretically infinite lifetimes.
Purpose of the Study:
- To investigate a microcavity formed by a liquid crystal defect layer in a 1D photonic crystal.
- To explore the coupling between the microcavity mode and Tamm plasmon polaritons.
- To demonstrate tunable optical properties of the resulting hybrid modes.
Main Methods:
- Fabrication of a 1D photonic crystal with an embedded liquid crystal defect layer.
- Excitation and spectral analysis of the microcavity modes.
- Investigation of coupling with Tamm plasmon polaritons.
- Application of temporal coupled mode theory for analysis.
Main Results:
- The microcavity mode exhibits a tunable radiation decay rate near a BIC.
- Coupling with Tamm plasmon polaritons forms hybrid Tamm-microcavity modes.
- The Q factor of these hybrid modes is demonstrated to be tunable.
- Experimental spectral features are well-explained by temporal coupled mode theory.
Conclusions:
- Hybrid Tamm-microcavity modes can be engineered with tunable optical properties.
- This system provides a platform for controlling light-matter interactions.
- The findings are relevant for developing advanced photonic devices and sensors.
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