From quantum computing to biomedical implants and electronics, learn about some of our research projects within the Microsystems Research Group below: 

MEMS based optical cross-switch (OXC)  

This project is about the development of an all-optical cross switch using MEMS technology for applications in provisioning and restoration of optical communication networks. Whilst many silica fiber-based optical switches have been reported, this development uniquely addresses the monolithic integration of the switch within the fabric of planar silica waveguides on a silicon substrate.  

This is facilitated by the successful development of two novel and critical components:  

  1. A low voltage bistable actuation mechanism for out-of-plane actuation of the micromirror which is monolithically inegrated onto the actuator.  
  2. A pair of planar silica focussing element for low loss free-space propagation within the switch. 

For more information, contact Prof. Chee Yee Kwok

Optical interconnect for 3D integration of integrated circuits  

This project is about the development of optical interconnects for 3D integration. In 3D integration of integrated circuits, the silicon chips are stacked on top of each other. Aggressive dimensional scaling has brought us into the 32nm node. 3D integration will allow the era gigascale integration to meet the evergrowing demands of greater functionality in integrated circuit systems. 

For more information, contact Professor Chee Yee Kwok.  

Integrated quantum computer devices  

Prof. Andrew Dzurak leads several research projects within the Integrated Quantum Computer Devices Program of the Centre for Quantum Computer Technology (CQCT). The program provides engineering design, modelling and nanofabrication of fully configured Si:P qubits and associated pathway devices, making extensive use of the Semiconductor Nanofabrication Facility (SNF). 

For more information, contact Professor Andrew Dzurak

Quantum measurement  

Professor Andrea Morello manages the Quantum Measurement & Control Chip Program within the Centre for Quantum Computer Technology (CQCT). . The research projects within this program focus on the coherent control and readout of a single-P-atom electron spin qubits in silicon. Throughout 2009, a new donor spin qubit architecture developed within the Centre was investigated in depth, achieving one of the most important milestones in solid-state spin qubits research-the single-shot readout of an electron spin. 

For more information, contact Professor Andrea Morello

Development of RF MEMS technology for modern wireless communications systems  

In modern wireless communication systems, information data transmission must be able to handle multiple frequency bands and to provide multiple channels for different signals. The solution is to combine the increase in bandwidth (ultra-wide bandwidth) and speed, thus develop technologies for the transceiver architecture.  

This requires new technologies and fabrication processes for circuits, devices and components, as well as the development of new materials. Our focus is to develop RF MEMS technology for reconfigurable communication systems with multifunctional capabilities. 

For more information, contact Professor Rodica Ramer.

Ultra-low temperature electronics  

This research is motivated by the need for controlling and observing spin-based silicon quantum computing processors in future quantum computers. Such quantum computing processors will be operating at temperatures below 1K. To facilitate the quantum processor control, conventional electric circuits are required operating at temperatures below 4.2K. 

For more information, contact Dr Torsten Lehmann.  

Circuits for biomedical implants  

This research is motivated by the strict power and reliability requirements of electronic implants and capsules, such as cochlear implants, vision prostheses and wireless endoscope. The available power in such systems is very limited: either due to limits on safe transcutaneous power transfer or the limited capacity of installed batteries. The focus of this research is to reduce the power dissipation of the required circuit functions. 

For more information, contact Dr Torsten Lehmann.