Parametric Photonics for Quantum Technologies

Closing date: 30/06/2025

Supervisory Team: Prof Corin Gawith, Dr Goronwy Tawy

Project Description

We are looking for a PhD student to join our interdisciplinary team of students, postdocs, and senior researchers developing systems for quantum technologies. 

Nonlinear parametric photonics is used to control quantum systems and as sources for photonic qubits. Researchers at the University of Southampton have led the development of quasi-phase-matched non-linear systems. This project will combine novel fabrication approaches with well-developed commercial materials to expand the operation range into the blue and ultra-violet wavelength regions for atom and ion trap quantum systems. 

In this project, you will design, fabricate and test parametric devices for quantum technologies, working with our interdisciplinary team of students, postdocs, and senior researchers to apply these devices to quantum systems. If you are looking to do computer modelling and have the required skills, the project can also be adjusted for this. Areas of research include:

• The development of blue and UV-generating parametric waveguides for the control of atom and ion trap systems. These will generate blue and UV light from infrared light sources.
• Investigating type II non-linear waveguides for single photon generation. Including the use of coupled cavities to enhance the efficiency. You will then use these findings to develop prototype systems that can be used in photonic quantum computing. 
• Developing up-conversation devices (combining two low-energy photons) for single photon imaging in the mid-infrared for environmental monitoring and life-science imaging. 

Both these areas involve fabrication of devices, optical testing and metrology, and working with our partners to apply the devices to quantum systems. This project will closely work with the UK Quantum Technology Hub in Sensing, Imaging and Timing (QuSIT) and will have opportunities to engage with the other partners on the project.   

If you are interested in quantum technologies, photonics and micro-fabrication, you would be highly suitable for this project. You will benefit from our world-leading expertise in these fields and enjoy working in a highly supportive environment in our Southampton group and collaborating with partner groups within the UK National Quantum Technology Programme.

Our department and research group:

   https://www.southampton.ac.uk/about/faculties-schools-departments/zepler-institute

   https://www.southampton.ac.uk/research/institutes-centres/optical-engineering-quantum-photonics-group

   https://www.planarphotonics.com/ 

The PhD programme:

   https://www.southampton.ac.uk/study/postgraduate-research/photonics-optoelectronics

   https://www.youtube.com/watch?v=N2_6yNQamkU 

If you wish to discuss any details of the project informally, please contact Dr James Gates, email: gates@soton.ac.uk 

Entry Requirements

A very good undergraduate degree (at least a UK 2:1 honours degree, or its international equivalent). 

How To Apply

Apply online: Search for a Postgraduate Programme of Study (soton.ac.uk). Select programme type (Research), Faculty of Engineering and Physical Sciences, next page select “PhD ORC”. In Section 2 of the application form you should insert the name of the supervisor. 

Applications should include:

Personal Statement

Curriculum Vitae (CV)

Two academic reference letters

Degree Transcripts and Certificates to date 

For further information please contact: feps-pgr-apply@soton.ac.uk