Bloch Surface Wave-atom Coupling in Periodic Photonic Structure

TL;DR

This paper explores the integration of hot atom vapor with photonic structures, demonstrating stable Bloch surface wave-atom coupling in a miniaturized 1D photonic crystal-Rb vapor cell, revealing nonlinear quantum effects.

Contribution

It introduces a novel 1D photonic crystal-Rb vapor cell for enhanced atom-photon interaction and studies the stability and nonlinear effects of Bloch surface wave coupling.

Findings

Bloch surface wave induced transparency remains stable under incidence angle changes.

Nonlinear interactions cause slight shifts in atomic transition detunings.

Coupling leads to quantum interference effects and optical nonlinearities.

Abstract

Considering efforts for hot atom vapor-nanophotonic integration as a new paradigm in quantum optics in this paper we introduce 1D photonic crystal-Rb vapor cell as structure with miniaturized interaction volume. The Bloch surface wave excited on surface of a photonic crystal as electromagnetic hosting photonic mode, and altered the optical response of Rb atoms in the vicinity of surface. Coupling of atomic states with BSW confined modes would lead to quantum interference effects and results in nonlinearities in resonant coupling of atoms with BSW. We show Bloch surface wave induced transparency is highly stable under a change of incidence angle. Our results show slight changes in transitions detunings due to nonlinear interactions like the Casimir-Polder effect under change of localized density of optical states.