Silicon based QD light sources and lasers
Lead Research Organisation:
University of Sheffield
Department Name: Physics and Astronomy
Abstract
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Organisations
Publications
Orchard J
(2017)
Silicon-Based Single Quantum Dot Emission in the Telecoms C-Band
in ACS Photonics
Orchard JR
(2016)
In situ annealing enhancement of the optical properties and laser device performance of InAs quantum dots grown on Si substrates.
in Optics express
Description | Observation of emission from single quantum dots at 1.5um from a structure grown on Si. |
Exploitation Route | Potential to be used to produce single photon sources operating at telecommunications wavelengths and directly compatible with CMOS electronics |
Sectors | Aerospace Defence and Marine Electronics Financial Services and Management Consultancy Security and Diplomacy |
Title | Enhanced defect filter layers by in-situ annealing |
Description | The growth of III-V semiconductors on Si requires carefully optimised defect filter layers to reduce the density of dislocations which are able to propagate from the Si_III-V interface to the III-V active region. Defect filter layers use strained InGaAs-GaAs superlattices. We have shown that by adding insitu-annealing the efficiency of these DFLs is increased with lower numbers of dislocations reaching the III-V active region. |
Type Of Material | Improvements to research infrastructure |
Year Produced | 2016 |
Provided To Others? | Yes |
Impact | We have been able to fabricate lasers on Si substrates with improved performance. |