Quantum coherent control of self-induced ultraslow light

TL;DR

This paper explores quantum coherent control of ultraslow light in solids, demonstrating a novel method for all-optical switching based on one-photon coherence in a multi-level system.

Contribution

It introduces a new approach to slow light control using one-photon coherence, differing from traditional two-photon EIT-based methods.

Findings

Demonstrates control of slow light via a third optical field

Shows potential for all-optical switching in solid-state systems

Provides insights into self-induced ultraslow light dynamics

Abstract

Quantum coherent control of slow light for all-optical switching is investigated in a multi-level system of solids for an understanding of self-induced ultraslow light. In an optical population shelving system of a rare-earth doped solid, dynamics of the slow light are presented by using a third optical field controlling shelved atom population. Unlike two-photon coherence-based delayed all-optical switching utilizing electromagnetically induced transparency, the present method relies on one-photon coherence controlling shelved atom population.