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Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
Published on: September 26, 2014
Flat photonic surface bands pinned between Dirac points
Dario Jukić1, Hrvoje Buljan, Dung-Hai Lee
1Department of Physics, University of Zagreb, Bijenička c. 32, Zagreb 10000, Croatia. djukic@phy.hr
Optics Letters
|December 22, 2012
Summary
Two-dimensional photonic crystals (2D PhCs) can support flat surface bands pinned to Dirac points. Optimizing system parameters enhances these flat bands, crucial for novel optical applications.
Area of Science:
- Condensed matter physics
- Photonics
- Materials science
Background:
- Two-dimensional photonic crystals (2D PhCs) exhibit unique electromagnetic properties.
- Surface states in photonic systems are of significant interest for wave manipulation.
Purpose of the Study:
- To investigate the existence and properties of surface bands in 2D photonic crystals.
- To explore the tunability of these surface bands, particularly their flatness.
Main Methods:
- Theoretical analysis of 2D photonic crystal structures.
- Numerical simulations to identify and characterize surface bands.
- Parameter optimization to control band dispersion.
Main Results:
- Demonstrated that 2D PhCs can host surface bands pinned to Dirac points.
- Showed that these surface bands can be significantly flattened by adjusting system parameters.
- Identified specific interface configurations supporting these surface modes.
Conclusions:
- 2D PhCs offer a platform for realizing tunable, flat surface bands.
- The ability to flatten surface bands at Dirac points has implications for topological photonics and device design.
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