Adjacent Asymmetric Tilt Grating Structure With Strong Resonance Assisted by Quasi-Bound States in the Continuum
In the field of optics, bound state in the continuum (BIC) as a special state to be researched in many photonic crystals and periodic structures, which can produce strong resonance and an ultrahigh Q factor.Some designs of narrowband transmission filters, lasers, and sensors are proposed based on excellent optical properties of quasi-BIC.In this pa