CLEO-PR2022/ISOM'22/ODF'22

Presentation information

Oral Session

CLEO-PR2022 » Theory and Fundamentals

[CWP16G] Theory and Fundamentals

Wed. Aug 3, 2022 1:30 PM - 3:00 PM Mid-sized Hall B (1F)

Session Chairs: Yu-Jung Lu (Academia Sinica), Takuo Tanaka (RIKEN)

2:00 PM - 2:15 PM

[CWP16G-03] Topological surface states at C4 rotational symmetry photonic crystals bounded by air

*Anna TASOLAMPROU TASOLAMPROU1, Maria Kafesaki1, Costas Soukoulis1, Eleftherios Economou1, Thomas KOschny2 (1. Institute of Electronic Structure and Laser, Foundation for Research and Technology Hellas (Greece), 2. Ames Laboratory and Department of Physics and Astronomy, Iowa State University (United States of America))

[Presentation Style] Online

We present an approach for manipulating topological states sustained at free space interfaces. Eigenvalue analysis corroborated by direct scattering simulations demonstrate the topological invariant jump, the mode's unidirectionalilty and immunity to defects and back-scattering.