Breakthrough in light manipulation: Unveiling novel finite barrier bound states

https://phys.org/news/2024-03-breakthrough-unveiling-finite-barrier-bound.html

"controlling light and sound wave propagation and localization in photonic crystals... bandgaps caused by periodic structure of crystal control (or inhibit) wave propagation in certain frequencies... fine control of finite barrier bound states... boundary modes more easily confined with increasing system size (with many lattice sites) as tunneling probability decreases... improved performance, efficiency... photonic crystals enhancing light-matter interactions (nonlinear optics, interactions between light and 2D materials)"