2 papers
physics.optics2026
High-Performance Photonic Crystal Biosensors using Sub-wavelength Nanopillars
Zhengzheng Zhai, Sajeev John
Photonic-crystal (PC) slabs composed of subwavelength silicon pillars erected on a thin silicon backing layer, with heights of only one or half lattice constant, are simulated for…
physics.optics2025
High-Sensitivity Photonic Crystal Biosensors using Topological Light Trapping
Zhengzheng Zhai, Sajeev John
Photonic crystals (PCs) with localized optical cavity modes arising from topological domain-wall line defects are simulated for optical biosensing by numerical solution of Maxwell'…