4 papers
Planar chiral nanoantenna for excitation-chirality-controlled hot spot modulation and emitter-coupled circularly polarized emission
Abhik Chakraborty, Xiaofei Wu, Ankit Kumar Singh +5
A planar chiral plasmonic nanoantenna exhibiting an excitation-chirality-dependent hot spot in a nanogap is numerically investigated. Additionally, the underlying design principles…
Phase Matched Plasmonic Transmission Lines for Cascaded Second-Harmonic Generation as a Pathway to Nonlinear Logic Circuits
Komal Gupta, Anand Hegde, Xiaofei Wu +2
In nonlinear nanophotonics, cascaded second-harmonic generation (SHG) in pure plasmonic waveguides for sequential signal transformation and complex on-chip functionality remains a…
High-definition 3D suspended Archimedean spiral with broadband, spatially extended, and single-handed optical chirality enhancement in Vis-NIR range
Min Jiang, Abhik Chakraborty, Xiaofei Wu +2
3D plasmonic structures can provide giant optical chirality (C) in the near field, enabling strong interactions with enantiomers for chiral sensing applications. However, these str…
Positive-tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet-etching
Abhrodeep Dey, Uwe Hübner, Albane Benardais +10
Antimony trisulfide (), as an emerging material for integrated photonic devices, has attracted significant attention due to its high index, low loss, and phase-changin…