Polarized single photon emission for quantum cryptography based on colloidal nanocrystals

Author

Pisanello, Ferruccio ; Martiradonna, Luigi ; Spinicelli, Piernicola ; Fiore, Angela ; Hermier, Jean-Pierre ; Manna, Liberato ; Cingolani, Roberto ; Giacobino, Elisabeth ; Bramati, Alberto ; De Vittorio, Massimo

Author_Institution

Nat. Nanotechnol. Lab., Univ. del Salento, Lecce, Italy

fYear

2009

fDate

June 28 2009-July 2 2009

Firstpage

1

Lastpage

4

Abstract

In this paper, the evidence of a polarized and room temperature single photon emission from wet-chemically synthesized colloidal dot-in-a-rod is reported. The time and polarization resolved measurements clearly indicate a high degree of linear polarization and a lifetime of ~11 ns. We report also about a viable strategy to develop single photon sources with polarization control for quantum cryptography.

Keywords

colloidal crystals; light polarisation; nanostructured materials; quantum cryptography; colloidal nanocrystals; linear polarization; photon sources; polarization control; polarization resolved measurements; polarized single photon emission; quantum cryptography; wet-chemically synthesized colloidal dot-in-a-rod; Atomic layer deposition; Costs; Cryptography; Nanocrystals; Optical control; Photonics; Polarization; Quantum dots; Quantum entanglement; Temperature; colloidal nanocrystals; quantum cryptography; single photon sources;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks, 2009. ICTON '09. 11th International Conference on

Conference_Location

Azores

Print_ISBN

978-1-4244-4825-8

Electronic_ISBN

978-1-4244-4827-2

Type

conf

DOI

10.1109/ICTON.2009.5185131

Filename

5185131