Hoang, T. X., Leykam, D., & Kivshar, Y. (2024). Photonic Flatband Resonances in Multiple Light Scattering. Physical Review Letters, 132(4). https://doi.org/10.1103/physrevlett.132.043803
Abstract:
We introduce the concept of photonic flatband resonances and demonstrate it for an array of high-index dielectric particles. We employ the multiple Mie scattering theory and demonstrate that both short- and long-range interactions between the resonators are crucial for the emerging collective resonances and their associated photonic flatbands. By examining both near- and far-field characteristics, we uncover how the flatbands emerge due to a fine tuning of resonators’ radiation fields, and predict that hybridization of a flatband resonance with an electric hot spot can lead to giant values of the Purcell factor for the electric dipolar emitters.
License type:
Attribution 4.0 International (CC BY 4.0)
Funding Info:
This research / project is supported by the Agency for Science, Technology and Research (A*STAR) - Career Development Fund
Grant Reference no. : C210112012
This research is supported by the National Research Foundation, Singapore and A*STAR under its CQT Bridging Grant
This research / project is supported by the Australian Research Council - N/A
Grant Reference no. : DP210101292