3 papers
physics.optics2020
On the robustness of bound states in the continuum in waveguides with lateral leakage channels
Lijun Yuan, Ya Yan Lu
Bound states in the continuum (BICs) are trapped or guided modes with frequencies in radiation continua. They are associated with high-quality-factor resonances that give rise to s…
physics.optics2020
Conditional robustness of propagating bound states in the continuum on biperiodic structures
Lijun Yuan, Ya Yan Lu
For a periodic structure sandwiched between two homogeneous media, a bound state in the continuum (BIC) is a guided Bloch mode with a frequency in the radiation continuum. Optical…
physics.optics2019
Perturbation theories for symmetry-protected bound states in the continuum on two-dimensional periodic structures
Lijun Yuan, Ya Yan Lu
On dielectric periodic structures with a reflection symmetry in a periodic direction, there can be antisymmetric standing waves (ASWs) that are symmetry-protected bound states in t…