The University of Southampton

Photonic, Electronic and Plasmonic Microstructured Optical Fibres

Advanced technological applications demand high performance devices, which in turn require exceptional materials. Focussing on the fundamental materials research and development necessary to move this innovation beyond the laboratory to next-generation photonic devices and systems the group have already developed and patented an innovative technique towards purely fibre based systems. 

A fibre based system is preferable as it avoids the use of heterogeneous, discrete optoelectronic components to transform in-fibre photonic signals to chip-based electronic signals which is complex and high in cost. 

Group webpage

PhD Projects:

Microstructured optical fibres with embedded electrodes for novel electro-optic devices

Supervisor: Dr Pier Sazio 

Optical fibres with embedded electrodes are widely utilized in a number of scientific and technological applications. In combination with the highly innovative semiconductor deposition technology we have developed here at the ORC in collaboration with colleagues in the US, the project will span the multidisciplinary remit of cleanroom based, fibre materials development, the fabrication of radically new photonic devices that utilise high electric fields applied within microstructured fibre waveguides. This could result in novel gain media as well as exotic nonlinear photonic devices.

Furthermore, there is tremendous scope to expand these ideas and thus create a radically new “optoelectronic” technology that encompasses gas laser technology, electrically pumped optical fibres and many other technological innovations.

This ambitious project would thus be suitable for a bright, motivated candidate with a strong physics/materials/engineering related background to develop highly transferable skills in materials growth, advanced numerical modelling and fibre device characterisation whilst interacting with a wide range of experts leading in the field.

Ferroelectric/TMD-monolayer tunable optoelectronics

Supervisor: Pier Sazio
Co-supervisor: Professor Dan Hewak

Technologies that are associated with single photon sources are essential for the development of quantum communications and quantum information processing. To this end there has been extended activity in this research area which is largely relevant to Physics and materials science.

This project is dedicated to the development of such sources based on quantum dots that consists of 2D materials, such as MoS2 and other transition metal dichalchogenides) which are deposited onto the tips of ultra-sharp ferroelectric micro-structures. The main advantages of such an arrangement come from i) the positioning accuracy of the quantum dot and ii) from the functionality of the ferroelectric substrate which can be tuned electrically and/or optically to modulate the emission of light from the quantum dots.

The research program will provide numerous training opportunities to the candidate ranging from cleanroom-based fabrication techniques to high precision spectroscopy and electronic device characterization method.

 

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