Hae‐Seok Jeong

Critically coupled zeroth-order resonance for ultrathin nonlinear photonics

Hae‐Seok Jeong, Soon‐Jae Lee, Y Jin, Su‐Hyun Gong et autres

Ultrathin active materials are essential for compact nonlinear and quantum photonic devices, yet no general principle exists to link their optical constants to the cavity designs required for simultaneous field buildup and reflection suppression. Consequently, achieving extreme optical confinement currently relies on …

Transverse‐spin–momentum locking in a single‐crystalline plasmonic gap waveguide with a circular nanohole cavity

Hae‐Seok Jeong, Soon‐Jae Lee

Abstract Transverse spin momentum in optical fields enables spin‐dependent routing of light, offering a promising route toward nonreciprocal and chiral photonic functionalities. Here, we demonstrate robust, polarization‐selective waveguiding in a plasmonic gap waveguide, enhanced by a circular nanohole cavity. Our device is …

kr, jp (code pays fourni par la source)

On-Chip Integrated Plasmonic Chiral Sensor

Hae‐Seok Jeong, Soon‐Jae Lee, Su‐Hyun Gong, Q‐Han Park

This study develops an ultrasmooth single-crystalline gold plasmonic structure for enhanced chiral sensing, focusing on precise control of transverse spin of SPP modes, to improve sensitivity and directionality for on-chip chiral-sensing applications.

kr (code pays fourni par la source)