4 papers · 1 filter
Structured Optical Fields Reveal Nanoscale Chiral Light-Matter Interactions Governed by Optical Chirality
Atsushi Kamegaya, Shun Hashiyada, Yoshito Y. Tanaka
Optical chirality has been proposed as the local electromagnetic quantity governing chiral light-matter interactions, yet in conventional circularly polarized fields its magnitude…
Direct observation of anisotropic surface phonon polaritons on α-quartz
Ryoga Odawara, Kotaro Shirahata, Aozora Ohi +2
Anisotropic surface phonon polaritons (SPhPs) offer extremely strong light confinement and unique light propagation characteristics, particularly on anisotropic polar crystals. Des…
Unveiling orbital optical chirality through multipolar chiral light-matter interaction
Shun Hashiyada, An'an Wu, Yoshito Y. Tanaka
Chiral light-matter interactions have traditionally been understood in terms of electric-magnetic dipolar interference driven by light with spin angular momentum. Here, we show tha…
Conservation law for angular momentum based on optical field derivatives: Analysis of optical spin-orbit conversion
Shun Hashiyada, Yoshito Y. Tanaka
We present a theoretical framework for analyzing the loss of optical angular momentum (AM), including spin (SAM) and orbital (OAM) components, in light-matter interactions. Convent…