| EPSRC Reference: |
EP/M50838X/1 |
| Title: |
GaSb/GaAs quantum rings as single photon sources |
| Principal Investigator: |
Hayne, Professor M |
| Other Investigators: |
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| Department: |
Physics |
| Organisation: |
Lancaster University |
| Scheme: |
Technology Programme |
| Starts: |
01 May 2015 |
Ends: |
30 April 2016 |
Value (£): |
115,052
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Summary on Grant Application Form |
Quantum technologies are those which exploit the exotic properties of nature described by quantum mechanics to deliver
devices with unprecedented speed or accuracy compared with conventional technology, or even generate completely novel
technologies with new functionalities, which simply do not exist at present. Quantum cryptography is one such technology:
communication whose security is guaranteed by fundamental laws of quantum mechanics. The implementation of quantum
cryptography relies on the ability to generate single photons of light on demand. Several different physical systems have
been used to generate single photons, but very few of them are suitable for commercial production as they are impractical
and inconvenient. An ideal single photon source should be fast, cheap, operate at room temperature, and emit photons at
the wavelengths used in existing optical-fibre based telecommunications systems. In fact, a practical single photon source
is expected to look very like a type of semiconductor laser diode called a vertical cavity surface emitting laser (VCSEL). In
this year-long project we will assess the feasibility of mass-producing low-cost, room-temperature single photon sources
with telecom-wavelength emission by developing novel VCSEL devices whose active regions incorporate tiny
semiconductor nanostructures called self-assembled quantum rings. This will allow us to leap-frog a stage in the
development of practical, i.e. commercial, single photon sources, and to make a realistic assessment of their commercial
potential.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.lancs.ac.uk |