2 papers
physics.optics2025
Robustness of Bound States in the Continuum in Bilayer Structures against Symmetry Breaking
Kliment V. Semushev, Zilong Zhao, Alexey Proskurin +5
We investigate the robustness of bound states in the continuum (BICs) in a bilayer dielectric rod array against geometric and material perturbations. Our analysis focuses on both s…
physics.optics2025
Electric-Field-Induced Second-Harmonic Generation
Hangkai Fan, Alexey Proskurin, Mingzhao Song +2
Second-harmonic generation (SHG) is a fundamental nonlinear optical process widely used in photonics; however, it is strictly forbidden in the bulk of centrosymmetric materials due…