Photonics Research, Volume. 9, Issue 8, 1592(2021)
Negative refraction mediated by bound states in the continuum On the Cover
Fig. 1. (a) Schematic of negative refraction mediated by bound state in the continuum (BIC), where the vertical guiding is based on the BIC. A Gaussian beam is used to excite negative refraction modes as indicated by arrows. (b) A unit cell of the PhC slab is formed by a dielectric pillar (relative permittivity
Fig. 2. (a) Dispersion properties of PhC slab along the
Fig. 3. (a) and (b) Evolution of the magnetic field [
Fig. 4. (a) Experimental setup and the fabricated dielectric PhC slab used to demonstrate the negative refraction mediated by quasi-BICs. The red dashed rectangle indicates the measured area in the experiment. (b) The calculated EFCs (black solid lines) and the corresponding
Fig. 5. Coupling of a Gaussian beam with a stereo incident angle to the on-chip negative refraction mode mediated by the quasi-BICs. The angle between the incident
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Zhanyuan Zhang, Feifei Qin, Yi Xu, Songnian Fu, Yuncai Wang, Yuwen Qin. Negative refraction mediated by bound states in the continuum[J]. Photonics Research, 2021, 9(8): 1592
Category: Nanophotonics and Photonic Crystals
Received: Apr. 7, 2021
Accepted: Jun. 6, 2021
Published Online: Aug. 2, 2021
The Author Email: Yi Xu (yi.xu@osamember.org)