3 papers
physics.optics2026
Arbitrary Polarization Generation in Magneto-optical Metasurfaces Enabled by Bound States in the Continuum
Siyuan Gao, Guangtai Lu, Satoshi Iwamoto +1
The generation of arbitrary polarization states of light is essential for optical communication and photonic information processing. Photonic crystal and metasurface platforms supp…
physics.optics2025
Experimental realization of wide-mode-area slow light modes in valley photonic crystal heterostructure waveguides
Chengkun Zhang, Guangtai Lu, Nattujuks Pholsen +2
We experimentally realized wide-mode-area slow-light modes in valley photonic crystals (VPhCs) heterostructure waveguides. The waveguides are fabricated on a silicon slab by insert…
cond-mat.mes-hall2025
Topological Corner States in Bilayer and Trilayer Systems with Vertically Stacked Topological Heterostructures
Natsuko Ishida, Motohiko Ezawa, Guangtai Lu +4
We investigate bilayer and trilayer systems composed of topologically distinct, vertically stacked layers, forming topological heterostructures based on the Benalcazar-Bernevig-Hug…