Phase sensitive photonic flash

TL;DR

This paper proposes a theoretical scheme for a phase-sensitive photonic flash using coupled cavities, enabling controllable photonic localization through quantum interference effects.

Contribution

It introduces a novel phase-controlled photonic flash mechanism in coupled cavity systems, including generalization to multiple cavities for selective bright and dark states.

Findings

Perfect photonic flash achieved at resonant driving in a trimer system

Phase difference controls steady state via quantum interference

Alternating bright and dark states in multi-cavity systems

Abstract

We theoretically propose a photonic flash based on a linearly coupled cavity system. Via driving the two side cavities by external fields, it forms a cyclic energy-level diagram and therefore the phase difference between the driving fields acts as a controller of the steady state due to the quantum interference effect. In the optical trimer structure, we show that the perfect photonic flash can be realized in the situation of resonant driving. The perfect photonic flash scheme is furthermore generalized to multiple coupled cavity system, where the cavities with odd and even number turn bright and dark alternatively. {Our proposal may be applied in the designing of quantum neon and realizing a controllable photonic localization.