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Updated: Jun 29, 2025
11:08
Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
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Intercavity polariton slows down dynamics in strongly coupled cavities
Yesenia A García Jomaso1, Brenda Vargas1, David Ley Domínguez1
1Instituto de Física, Universidad Nacional Autónoma de México, Apartado Postal 20-364, Ciudad de México, C.P., 01000, Mexico.
Nature Communications
|April 4, 2024
Summary
We demonstrate tuneable heavy-polaritons in a coupled cavity system, akin to slow light, without periodic potentials. This photonic approach enables control over light propagation and optical non-linearities.
Area of Science:
- Quantum Many-Body Physics
- Photonics and Light-Matter Interactions
Background:
- Band engineering is key for quantum many-body phenomena.
- Controlling light group velocity is crucial in photonics for novel light flows.
- Λ-schemes allow light propagation control in lattice-free configurations, enabling slow-light and optical non-linearities.
Purpose of the Study:
- To realize room-temperature intercavity Frenkel polaritons.
- To demonstrate tuneable heavy-polaritons mimicking slow light without periodic potentials.
- To investigate the interplay between many-body scattering and polariton dynamics.
Main Methods:
- Utilizing a photonic architecture with two strongly coupled cavities.
- Employing a simple three-level scheme for excitation.
- Spatial segregation of photons and excitons across cavities.
Main Results:
- Formation of a tuneable heavy-polariton exhibiting slow-light characteristics.
- Observation of spatial segregation and balanced mixing of photons and excitons.
- Increased fluorescence lifetime due to competition between scattering and polariton nature.
- Suppression of polariton fluorescence intensity under resonant pumping.
Conclusions:
- The developed photonic architecture enables control over polariton properties.
- The system exhibits unique phenomena like tuneable heavy-polaritons and enhanced fluorescence lifetime.
- This work opens avenues for novel optical non-linear systems and light manipulation.
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