Low-density quantum dots embedded in photonic-crystal nanocavities for single-photon generations

Wen Hao Chang, Wen Yen Chen, Hsiang Szu Chang, Tung Po Hsieh, Jen Inn Chyi, Tzu Min Hsu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

An efficient single-photon source based on low-density InGaAs quantum dots in a photonic-crystal nanocavity is demonstrated. The single-photon source features the effects of photonic band gap, yielding a single-mode spontaneous emission coupling efficiency as high as β=92% and a linear polarization degree up to p=95%. This appealing performance makes it well-suited for practical implementation of polarization-encoded schemes in quantum cryptography.

Original languageEnglish
Title of host publicationPhysics of Semiconductors - 28th International Conference on the Physics of Semiconductors, ICPS 2006, Part A and B
Pages907-908
Number of pages2
DOIs
StatePublished - 2007
Event28th International Conference on the Physics of Semiconductors, ICPS 2006 - Vienna, Austria
Duration: 24 Jul 200628 Jul 2006

Publication series

NameAIP Conference Proceedings
Volume893
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference28th International Conference on the Physics of Semiconductors, ICPS 2006
Country/TerritoryAustria
CityVienna
Period24/07/0628/07/06

Keywords

  • Cavity QED
  • Photon antibunching
  • Quantum dots
  • Single-photon sources

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