Cavity-assisted spontaneous emission of a single $\Lambda$-type emitter as a source of single-photon packets with controlled shape

TL;DR

This paper investigates how to generate shaped single-photon wave packets efficiently using a three-level emitter in a cavity, by controlling the pump pulse shape to optimize emission quality and timing.

Contribution

It demonstrates that adjusting the pump pulse shape allows for high-efficiency generation of single-photon wave packets with desired temporal profiles.

Findings

High-efficiency one-photon Fock state emission achieved

Controlled shaping of photon wave packets demonstrated

Impact of cavity losses on emission analyzed

Abstract

The radiation emitted by a classically pumped three-level $\Lambda$-type emitter in a resonator cavity featuring both radiative and unwanted losses is studied. In particular, the efficiency of one-photon Fock state excitation of the outgoing wave packet and the spatio-temporal shape of the wave packet are investigated. It is shown that for given shape of the emitter--cavity interaction, adjusting the shape of the pump pulse renders it possible to generate the emission of one-photon Fock state wave packets of desired shape with high efficiency.