Waveguide-coupled 2D materials for spontaneous parametric down conversion (SPDC) generation and collection

Summary

This project aims to generate correlated photons directly on-chip from 2D materials.

Supervisor(s)

Associate Professor Stefano Palomba

Research Location

School of Physics

Program Type

Masters/PHD

Synopsis

The future quantum optical information processing (QOIP) field doesn’t have a “winning” platform yet. Once, of the approaches is to generate single photons on demand, identical (spectral purity) and in high quantity. One potential solution to this problem is to use nonlinear optical phenomena, such as spontaneous parametric down-conversion (SPDC), i.e. pumping the material at low optical wavelength (such as 750 nm) and observe the generation of correlated (produced at the same time and with correlated properties) photon pairs. These can then be entangled on-chip and used for modern QOIP. However, the ideal source of correlated photon pairs has to be demonstrated yet. Here we want to detect the SPDC from a 2D material deposited on a Si integrated waveguide. In this way we hope to increase the light-matter interaction and enhance the production of correlated photon-pairs which will be already couple into the waveguide and ready to be entangled and used directly on-chip. The project will first entails a linear and nonlinear characterization of the samples which are produced at ANU.

Additional Information

Additional supervisors for this research are Professor Dragomir Neshev from ANU and Dr Alexander Solntsev from UTS. 
HDR Inherent Requirements  

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

quantum optics, Spontaneous parametric down-conversion (SPDC), nanophotonics

Opportunity ID

The opportunity ID for this research opportunity is: 2699

Other opportunities with Associate Professor Stefano Palomba