Poling multilayer dielectric structures for compact active optical devices

Summary

Optical communications technology has transformed the world. There is a need to get more optical processing functionality into smaller devices, for applications ranging from inexpensive electro-optic modulation, through efficient visible light generation to generating quantum entanged photon pairs. This project will explore the selective modification of the nonlinearity of silicate planar structures as the basis for creating such compact active optical devices. 
This project builds on pioneering work by our group over the last 8 years in applying fibre-drawing to practical realisation of metamaterials, especially for sub-diffraction imaging.

Supervisor(s)

Professor Simon Fleming

Research Location

School of Physics

Program Type

PHD

Synopsis

The project will explore the modification of micro and nanostructured optical materials. The materials (mainly silicon oxides and silicon nitrides) will be deposited in our state-of-the-art nanofabrication facility. A technique know as poling, which we have pioneered, will be applied to induced nonlinearity in the structures. This will be characterised both at the structural level and the functional level. Optimal parameters for the design and composition of the material layers and the poling procedure will be determined. With this information optimum nonlinear planar samples will be produced which will subsequently be patterned lithographically to make demonstration optical devices. 

Additional Information

This project builds on pioneering work by our group over the last 8 years in applying fibre-drawing to practical realisation of metamaterials, especially for sub-diffraction imaging. 
Additional Supervisors:  Haoling An

In addition to the academic requirements set out in the Science Postgraduate Handbook, you may be required to satisfy a number of inherent requirements to complete this degree. Example of inherent requirement may include: 

- Confidential disclosure and registration of a disability that may hinder your performance in your degree; 
- Confidential disclosure of a pre-existing or current medical condition that may hinder your performance in your degree (e.g. heart disease, pace-maker, significant immune suppression, diabetes, vertigo, etc.); 
- Ability to perform independently and/or with minimal supervision; 
- Ability to undertake certain physical tasks (e.g. heavy lifting); 
- Ability to undertake observatory, sensory and communication tasks; 
- Ability to spend time at remote sites (e.g. One Tree Island, Narrabri and Camden); 
- Ability to work in confined spaces or at heights; 
- Ability to operate heavy machinery (e.g. farming equipment); 
- Hold or acquire an Australian driver’s licence; 
- Hold a current scuba diving license; 
- Hold a current Working with Children Check; 
- Meet initial and ongoing immunisation requirements (e.g. Q-Fever, Vaccinia virus, Hepatitis, etc.) 

You must consult with your nominated supervisor regarding any identified inherent requirements before completing your application.

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Keywords

poling, waveguide, planar waveguide, nonlinear, electro-optic, QPMSHG, microfabrication, nanofabrication, microlithography, nanophotonics

Opportunity ID

The opportunity ID for this research opportunity is: 2468

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