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Multimode Fano resonances for low-power mode switching.
Optics Letters
|February 15, 2020
Summary
Researchers engineered multimode Fano resonances on-chip, enabling wavelength- and shape-controlled optical phenomena. This breakthrough facilitates low-power mode switching for integrated photonic applications.
Area of Science:
- Photonics
- Optical phenomena
- Integrated photonics
Background:
- Fano resonances are fascinating optical phenomena extensively studied in photonics.
- Previous research has primarily focused on single-mode Fano resonances.
Purpose of the Study:
- To extend the study of Fano resonance to on-chip multiple modes and high-order modes, termed multimode Fano resonance.
- To engineer wavelength- and shape-controlled multimode Fano resonances using a compact integrated photonic structure.
Main Methods:
- Exploiting both wavelength and mode degrees of freedom.
- Utilizing a compact integrated photonic platform.
- Simulated and experimental validation of the proposed structure.
Main Results:
- Demonstrated a compact structure for engineering multimode Fano resonances.
- Achieved unambiguous asymmetric spectral line shapes for transverse electric modes (TE0 and TE1).
- Showcased the potential for low-power mode switching based on engineered Fano resonances.
Conclusions:
- The developed on-chip multimode Fano resonance scheme offers a novel approach for integrated photonics.
- This work provides new perspectives for exploring the advantages and applications of multimode Fano resonances.
- The ability to control wavelength and shape opens new avenues for photonic device design.
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