Integration of chalcogenide materials with nanophotonic circuits for reconfigurable control of light
Lead Research Organisation:
University of Southampton
Department Name: Optoelectronics Research Ctr (closed)
Abstract
By layering a thin film chalcogenide, GeSbTe (GST) on top of a multi-mode
interference region (MMI), it is hoped that the propagation of light can be
manipulated in glass to create a reconfigurable optical demultiplexer. By
crystallizing or amorphizing different patterns into the chalcogenide, the ef-
fective refractive index of the MMI can be modulated in such a way that
propagating light is guided towards a selectable output
interference region (MMI), it is hoped that the propagation of light can be
manipulated in glass to create a reconfigurable optical demultiplexer. By
crystallizing or amorphizing different patterns into the chalcogenide, the ef-
fective refractive index of the MMI can be modulated in such a way that
propagating light is guided towards a selectable output
People |
ORCID iD |
| Dan Hewak (Primary Supervisor) | |
| Matthew Delaney (Student) |
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| EP/N509747/1 | 01/10/2016 | 30/09/2021 | |||
| 1921283 | Studentship | EP/N509747/1 | 01/10/2016 | 31/12/2020 | Matthew Delaney |
| Description | I have investigated the feasibility of different materials for use with integrated photonics. (For guiding light in real time.) Some materials have been identified as too lossy, as their optical absorption is too high, and a new materials has been found that might be suitable, but further tests are ongoing. Finally a different technique (using ion implantation) is being studied as an alternative technique to achieving the same outcome. A comprehensive suite of computer simulations has been made for testing devices and materials quickly. |
| Exploitation Route | The new family of materials holds a huge amount of promise in many different fields of physics, as they are the lowest loss phase change materials. They can be used to provide reconfigurability to any optical environment. Their properties could be continued to be tuned by doping, or using different capping layers/reflective mirrors as well as patterning with metamaterials. Doping with Te could be used to enhance their electronic properties as well. |
| Sectors | Aerospace, Defence and Marine,Digital/Communication/Information Technologies (including Software),Electronics |
| Description | CHAMP |
| Organisation | University of Exeter |
| Department | Physics and Astronomy |
| Country | United Kingdom |
| Sector | Academic/University |
| PI Contribution | We collaborate together on developing new phase change materials for photonic devices. I test different compositions are study the phase change effects using photonic devices and an experimental setup capable of switching the materials between the amorphous and crystalline phase. |
| Collaborator Contribution | They investigate a range of different materials and identify ones of interest. They also conduct similar experiments to me and confirm the findings. |
| Impact | I havnt been involved in any publications or patents from my work yet. |
| Start Year | 2016 |
| Description | CHAMP |
| Organisation | University of Oxford |
| Country | United Kingdom |
| Sector | Academic/University |
| PI Contribution | We collaborate together on developing new phase change materials for photonic devices. I test different compositions are study the phase change effects using photonic devices and an experimental setup capable of switching the materials between the amorphous and crystalline phase. |
| Collaborator Contribution | They investigate a range of different materials and identify ones of interest. They also conduct similar experiments to me and confirm the findings. |
| Impact | I havnt been involved in any publications or patents from my work yet. |
| Start Year | 2016 |