Abstract
Singularity, representing a structurally stable topological defect (TD), plays a pivotal role in various physical systems. Here we theoretically present the fingerprints of TDs and uncover the resulting exotic optical properties in a tailored metasurface system. The presence of the TDs results in coherent perfect absorption, and dramatic optical property transition from slow to superluminal light behavior when the parameters cross the TD. Our investigation provides a new route to explore many phenomena of the TDs, extends the capabilities of metasurface, and offers benefits to develop potential nanophotonic applications based on the design of the metasurface.
© 2014 Optical Society of America
Full Article | PDF ArticleMore Like This
Haiwen Wang, Charles C. Wojcik, and Shanhui Fan
Optica 9(12) 1417-1423 (2022)
Yuriy Vasylkiv, Ihor Skab, Mykola Smyk, and Rostyslav Vlokh
Appl. Opt. 53(18) 3967-3975 (2014)
Wang Zhang, Jie Tang, Peng Chen, Guoxin Cui, Yang Ming, Wei Hu, and Yanqing Lu
Opt. Express 27(15) 21667-21676 (2019)