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Updated: Jun 24, 2025
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Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems
Published on: April 28, 2016
15.1K
Topological Fano-resonance with type-II and type-III corner states
Optics Letters
|June 2, 2024
Summary
This study introduces type-II and type-III topological corner states to create robust Fano-resonant systems. These systems offer enhanced sensitivity and potential for quantum computing and sensing applications.
Area of Science:
- Topological photonics
- Condensed matter physics
- Quantum optics
Background:
- Topological corner states enable robust Fano-resonant systems resistant to perturbations.
- Existing systems preserve ultra-sensitive profiles under external factors.
Purpose of the Study:
- To extend Fano-resonant systems using type-II and type-III topological corner states.
- To investigate the creation of large-area topological states for advanced applications.
Main Methods:
- Utilizing photonic lattices with low symmetry (e.g., C2) to engineer type-II and type-III corner states.
- Tailoring long-range interactions within photonic lattices.
- Combining topological cavities with topological waveguides from first-order topological insulators.
Main Results:
- Successfully obtained type-II and type-III corner states in low-symmetry photonic lattices.
- Demonstrated the combination of these corner states with topological waveguides.
- Established a pathway for creating Fano-resonant systems with large modal surfaces.
Conclusions:
- The developed Fano-resonant systems exhibit topological robustness and high sensitivity.
- These systems are suitable for generating non-classical light for quantum computing.
- Potential applications include ultra-sensitive sensors utilizing large-area topological states.
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