D C Unitt et al 2005 J. Opt. B: Quantum Semiclass. Opt. 7 S129 doi:10.1088/1464-4266/7/7/001
D C Unitt1,2, A J Bennett1, P Atkinson2, K Cooper2, P See1, D Gevaux1, M B Ward1, R M Stevenson1, D A Ritchie2 and A J Shields1
Show affiliationsSemiconductor pillar microcavities containing quantum dots have shown promise as efficient sources of single and correlated pairs of photons, which may find applications in quantum information processing. In this paper we discuss the use of these sources to generate single photons and the use of pillars with elliptical cross-section to enhance and select a particular photon state. Single-photon interference measurements are also performed and show coherence times of up to 180 ps for quasi-resonantly pumped dots. Hong–Ou–Mandel-type two-photon interference measurements using a fibre interferometer indicate that individually created photons display a large degree of indistinguishability.
03.67.Lx Quantum computation architectures and implementations
Issue 7 (July 2005)
Received 21 January 2005, accepted for publication 3 March 2005
Published 30 June 2005
D C Unitt et al 2005 J. Opt. B: Quantum Semiclass. Opt. 7 S129
S Chávez-Cerda et al 2002 J. Opt. B: Quantum Semiclass. Opt. 4 S52
L Allen 2002 J. Opt. B: Quantum Semiclass. Opt. 4 S1
Alexandre Vial 2007 J. Opt. A: Pure Appl. Opt. 9 745
Ben van Well et al 2005 J. Opt. A: Pure Appl. Opt. 7 S420
Giulio Fanti and Roberto Maggiolo 2004 J. Opt. A: Pure Appl. Opt. 6 491
Vladimir R Tuz et al 2010 J. Opt. 12 095102
Jianbo Liu et al 2011 J. Neural Eng. 8 045002
Longquan Chen et al 2010 J. Micromech. Microeng. 20 105001
Jun Yang et al 2003 J. Micromech. Microeng. 13 963