| EPSRC Reference: |
GR/M13985/01 |
| Title: |
IN-PLANE AND VERTICAL CAVITY QUANTUM DOT LASERS |
| Principal Investigator: |
Parry, Professor G |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Electronic Materials & Devices (IRC) |
| Organisation: |
Imperial College London |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
21 May 1999 |
Ends: |
20 May 2001 |
Value (£): |
244,785
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| EPSRC Research Topic Classifications: |
| Optoelect. Devices & Circuits |
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| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
Electronics |
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| Related Grants: |
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| Panel History: |
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Summary on Grant Application Form |
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This proposal aims to exploit recent results on the fabrication of InAs/GaAs quantum dots (QDs), with the ultimate objective of producing in-plane and vertical vacity surface emitting QD lasers emitting at wavelengths as long as 1300nm. The programme is split into five strongly related tasks;(i) Optimisation of the growth conditions for QD lasers - this will involve using in-situ scanning tunnelling microscopy and reflection high energy electron diffractions to establish optimum growth conditions for producing InAs/GaAs QDs with the narrowest island size distributions.(ii) Demonstration of in-plane laser operation - this will involve the design and fabrication of in-plane laser structures using annealed QDs.(iii) Studying the influence of annealing conditions on laser operation - this will involve optical (photoluminescence) and structural (scanning transmission electron microscopy) characterisation of in-plane QD lasers, focusing in particular on the effects of annealing the device after post growth encapsulation with Si02.(iv) Design and fabrication of vertical cavity surface emitting QD lasers - this will involve the fabrication of QD laser structures using GaAs/AlAs Bragg mirrors as reflectors and assessing the effects of annealing after encapsulation with Si02 and addressing the issue of MBE re-growth.(v) The demonstration of VCSEL operation at 1300nm.
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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.imperial.ac.uk |