3 papers
physics.optics2026
Omnidirectional wave impedance matching and Goos-Hanchen shifts in non-Hermitian balanced positive-negative index metamaterials
Jeng Yi Lee, Chia-Heng Sun, Ke-Hsiang Huang +1
Wave reflection by non-Hermitian antisymmetric parity-time (APT) photonics made of a balanced positive index material (PIM) and negative index material (NIM) is investigated. As on…
physics.optics2025
Continuous coherent perfect absorption and lasing at an exceptional point of anti-parity-time symmetric photonic structures
Jeng Yi Lee
We consider a type of hypothetical compound materials in which its refractive index in spatial distribution meet , belonging to anti-parity-time (APT) symmetric st…
physics.optics2024
Dark Superabsorbers with Dirac-delta-like superdirective radiation
Jeng Yi Lee, Irving Rondon, Andrey E. Miroshnichenko +1
We theoretically and numerically reveal that under a given level of extinction cross section and with definite angular momentum channels dominant, there exists a physical limitatio…