Paper 13109-76
Creating controllable sets of bound states in the continuum (Invited Paper)
22 August 2024 • 9:05 AM - 9:30 AM PDT | Conv. Ctr. Room 6C
Abstract
Using representation theory, one can prove that current implementations of symmetry-protected bound states in the continuum (BICs) in photonic crystal slabs can only yield BICs at the center of the Brillouin zone and below the Bragg diffraction limit, which fundamentally restricts their use to single- or few-frequency applications. Instead, this limitation must be overcome by altering the system’s radiative environment. In this talk, I will show how to create lines of BICs by altering the radiative environment surrounding a photonic slab, as well as degenerate pairs of symmetry-protected BICs with independent control over their Q factors and frequency splitting.
Presenter
Alexander Cerjan
Sandia National Labs. (United States)
Alexander Cerjan is a Scientist at the Center for Integrated Nanotechnologies (CINT) and Sandia National Laboratories. He received his BS in Physics and Philosophy from Brown University in 2009, PhD in Physics from Yale University in 2015, and was a postdoc at Stanford University and Pennsylvania State University. He joined CINT in 2021. His research focuses on theoretical and computational photonics, as well as real-space approaches to material topology.