Structured nanofiber-based optical cavity for quantum electrodynamics

  • Maki Maeda
  • , Priscila Romagnoli
  • , Viet Giang Truong
  • , Wenfang Li
  • , Jinjin Du
  • , Jonathan M. Ward
  • , Síle Nic Chormaic

Research output: Contribution to journalArticlepeer-review

Abstract

Nanofiber-based optical cavities enable the creation of devices with strong atom-photon coupling; the cavity can be obtained by milling Bragg mirrors on a nanofiber. Here, we present experimental progress to optimize the quality of a triplex air-nanocube structured nanofiber cavity. The structures are produced by focused Ga+ ion beam milling. The quality factor obtained was ∼784 in a periodic structure of only 20 mirrors and structures with up to 50 mirrors were fabricated to increase the quality factor. Subsequently, single quantum emitters, such as quantum dots, deposited onto the cavity should achieve strong coupling. The proposed nanofiber-based cavity creates a small, integrated device for the study of single quantum emitters for quantum networks.

Original languageEnglish
Article numberOMC-P-10
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume11141
Publication statusPublished - 2019
Externally publishedYes
EventOptical Manipulation and Structured Materials Conference 2019 - Yokohama, Japan
Duration: 22 Apr 201926 Apr 2019

Keywords

  • Bragg mirrors
  • Focused ion beam
  • Optical cavities
  • Optical nanofiber
  • Single quantum emitters

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