Postgraduate research opportunities

Visible light photonic circuits for quantum technology applications

Design, micro-fabrication and characterisation of on-chip optical circuits in the visible spectral region. Efficient photon generation and manipulation targeting quantum optical applications.

Number of places

1

Funding

Home fee, Stipend

Opens

11 December 2020

Deadline

31 May 2021

Duration

42 Months

Eligibility

To enter our PhD programme applicants require an upper-second or first class BSc Honours degree, or a Masters qualification of equal or higher standard, in Physics, Engineering or a related discipline.

UKRI Studentship Eligibility

The eligibility criteria for UKRI funding has changed for studentships commencing in the 2021/22 academic year. Now, all home and international students are eligible to apply for UKRI funding which will cover the full stipend and tuition fees at the home rate (not the international rate). Under the new criteria, UKRI have stipulated a maximum percentage of international students that can be recruited each year against individual training grants. This will be managed at the institutional level for all EPSRC DTP and ICASE grants. For EPSRC CDT grants, this will be managed by the individual CDT administrative/management team. For ESRC and AHRC studentships the final funding decision will be made by the respective grant holder.

 

To be classed as a home student, applicants must meet the following criteria:

  • Be a UK national (meeting residency requirements), or
  • Have settled status, or
  • Have pre-settled status (meeting residency requirements), or
  • Have indefinite leave to remain or enter.

 

The residency requirements are based on the Education (Fees and Awards) (England) Regulations 2007 and subsequent amendments. Normally to be eligible for a full award a student must have no restrictions on how long they can stay in the UK and have been ordinarily resident in the UK for at least 3 years prior to the start of the studentship (with some further constraint regarding residence for education).

If a student does not meet the criteria above, they will be classed as an international student. The international portion of the tuition fee cannot be funded by the UKRI grant and must be covered from other sources. International students are permitted to self-fund the difference between the home and international fee rates.

Project Details

Quantum states of light such as single photons and entangled photon pairs play a fundamental role in many quantum technology applications, ranging from quantum imaging and metrology to quantum information processing.  In order to generate and harness these exotic states of light, a wide range of optical materials and systems are currently employed.  For interfacing with efficient non-linear optical processes and solid state quantum systems such as diamond colour centres, typically free space optics and bulk crystal devices are employed.  Alternatively, for systems requiring large scale photon routing and phase control, on-chip circuits in the near-IR band benefit from technology developed for telecommunications applications.

In this work the benefits of both these systems will be combined by developing on-chip optical systems operating in the visible region of the electromagnetic spectrum (450-800 nm).  Materials such as III-nitride semiconductors and silicon nitride allow high optical confinement to micron scale optical devices and non-linear generation of entangled photon pairs and higher order quantum states of light.  Unlike well-established photonic circuit technologies, for example in silicon, visible light components such as high quality resonators, all-optical switches and flexible filters need to be designed and integrated into flexible circuit designs.

The student will use numerical modelling methods to design optimised waveguide devices and develop micro-fabrication techniques required to realise this new technology in III-nitride and dielectric materials, including the hybrid integration of different materials on a single chip.  The student will be able to optically measure the performance of their devices in state of the art photonics laboratories, allowing feedback of measurements into an iterative design process. Research findings will be published in high impact journals with the opportunity to present at an international conference. 

 Institute of Photonics:

The Institute of Photonics (IoP), part of the Department of Physics, is a centre of excellence in applications-oriented research at the University of Strathclyde - The Times and Sunday Times Good University Guide 2020 Scottish University of the Year, The Queen’s Anniversary Prize for Higher and Further Education 2019, The Times Higher Education UK University of the Year 2019/20 (and 2012/13), The Times Higher Education Widening Participation Initiative of the Year 2019 and UK Entrepreneurial University of the Year 2013/14. The Institute’s key objective is to bridge the gap between academic research and industrial applications and development in the area of photonics. The IoP is located in the £100M Technology and Innovation Centre on Strathclyde’s Glasgow city centre campus, at the heart of Glasgow’s Innovation District, where it is co-located with the UK’s first Fraunhofer Research Centre. Researchers at the IoP are active in a broad range of photonics fields under the areas of Photonic Devices, Advanced Lasers and Neurophotonics, for further information please view the IoP webpage

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