Photonics Research, Volume. 9, Issue 6, 1109(2021)
Band dynamics accompanied by bound states in the continuum at the third-order Γ point in leaky-mode photonic lattices
Fig. 1. (a) Schematics of the representative 1D photonic lattices for studying the fourth stop band. (b) Conceptual illustration of the photonic band structures including the first four band gaps. Guided waves are described by the complex frequency
Fig. 2. Comparison between the key properties of the fourth (a)–(d) and second (e)–(h) stop bands. (a), (e) Simulated dispersion relations; (b), (f) radiative
Fig. 3. Simulated dispersion relations near the third-order
Fig. 4. FEM-simulated spatial electric field distributions at the upper and lower bands of
Fig. 5. (a) Simulated leaky edge
Fig. 6. Simulated dispersion relations at the closed band states in the vicinity of the third-order
Fig. 7. Properties of the DSG structure at the fourth stop band. (a) Simulated dispersion relations and (b) radiative
Fig. 8. Properties of the OSG structure at the fourth stop band. (a) Simulated dispersion relations and (b) radiative
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Sun-Goo Lee, Seong-Han Kim, Chul-Sik Kee. Band dynamics accompanied by bound states in the continuum at the third-order Γ point in leaky-mode photonic lattices[J]. Photonics Research, 2021, 9(6): 1109
Category: Physical Optics
Received: Dec. 9, 2020
Accepted: Apr. 8, 2021
Published Online: May. 27, 2021
The Author Email: Sun-Goo Lee (sungooleee@gmail.com), Chul-Sik Kee (cskee@gist.ac.kr)