On-chip electrically controlled routing of photons from a single quantum dot

Bentham, C.; Itskevich, I. E.; Coles, R. J.; Royall, B.; Clarke, E.; O'Hara, J.; Prtljaga, N.; Fox, A. M.; Skolnick, M. S.; Wilson, L. R.

Abstract

Electrical control of on-chip routing of photons emitted by a single InAs/GaAs self-assembled quantum dot (SAQD) is demonstrated in a photonic crystal cavity-waveguide system. The SAQD is located inside an H1 cavity, which is coupled to two photonic crystal waveguides. The SAQD emission wavelength is electrically tunable by the quantum-confined Stark effect. When the SAQD emission is brought into resonance with one of two H1 cavity modes, it is preferentially routed to the waveguide to which that mode is selectively coupled. This proof of concept provides the basis for scalable, low-power, high-speed operation of single-photon routers for use in integrated quantum photonic circuits.

Citation

Bentham, C., Itskevich, I. E., Coles, R. J., Royall, B., Clarke, E., O'Hara, J., …Wilson, L. R. (2015). On-chip electrically controlled routing of photons from a single quantum dot. Applied physics letters, 106(22), Article 221101. https://doi.org/10.1063/1.4922041

• Journal Article Type: Article
• Acceptance Date: May 1, 2015
• Online Publication Date: Jun 1, 2015
• Publication Date: Jun 1, 2015
• Deposit Date: Apr 8, 2016
• Publicly Available Date: Apr 8, 2016
• Journal: Applied physics letters
• Print ISSN: 0003-6951
• Electronic ISSN: 1077-3118
• Publisher: American Institute of Physics
• Peer Reviewed: Peer Reviewed
• Volume: 106
• Issue: 22
• Article Number: 221101
• DOI: https://doi.org/10.1063/1.4922041
• Keywords: Photons
• Public URL: https://hull-repository.worktribe.com/output/435500
• Publisher URL: http://scitation.aip.org/content/aip/journal/apl/106/22/10.1063/1.4922041
• Additional Information: Copy of article first published in: Applied physics letters, 2016, v.106
• Contract Date: Apr 8, 2016