Chiral optical Local Density of States in spiral plasmonic cavity

TL;DR

This paper demonstrates a novel chiral electromagnetic local density of states in spiral plasmonic cavities, revealing spin-dependent optical modes with implications for quantum plasmonic devices.

Contribution

It introduces the concept of chiral LDOS in spiral plasmonic structures and shows spin-dependent modes using NSOM, advancing quantum plasmonic research.

Findings

Spiral cavities exhibit spin-dependent local optical modes.

Chirality influences electromagnetic LDOS in plasmonic nanostructures.

Potential applications in quantum information processing.

Abstract

We introduce a new paradigm: the chiral electromagnetic local density of states (LDOS) in a spiral plasmonic nanostructure. In both classical and quantum regimes, we reveal using scanning near-field optical microscopy (NSOM) in combination with spin analysis that a spiral cavity possesses spin-dependent local optical modes. We expect this work to lead to promising directions for future quantum plasmonic device development, highlighting the potentials of chirality in quantum information processing.