School of Engineering Researcher Profiles | Page 37

35ELECTRICAL AND COMPUTER SYSTEMS ENGINEERING

Intelligent Lighting : Applications of Solid State Lighting

Dr Vineetha Kalavally Associate Professor BEng ( Hons ), PhD , PEng MIEM , PhD , CEng
Research expertise : Intelligent Lighting Control , Visual and Non-Visual Quality of Light , Optical Amplification , Visible Light Communication
E : vineetha @ monash . edu T : + 603 5514 6253

Design and Development of Micro and Nano Devices for Sensor Applications

Dr N Ramakrishnan Associate Professor M . Tech ., PhD
Research expertise : Sensors , Electronic Instrumentation , Nanotechnology , MEMS , Piezoelectric devices
Lighting control has entered a dynamic period of growth and potential . Solid state lighting ( SSL ) technologies emerging in recent years have enabled a wide range of innovative strategies , from room-level intelligence of occupancy and daylight harvesting to polychromatic LED clusters for tuning the human circadian rhythm . These new strategies are beginning to gain broad acceptance by office and home owners at the same time that green building regulations are increasingly mandating greater efficiency in buildings . This coincidence of events creates the opportunity for lighting research in collaboration with industry .
Recent innovations in the field of nanoscale functional materials and microelectromechanical systems ( MEMS ) have unveiled numerous opportunities for developing advanced sensors . However , there exist challenges in fabrication and attaining enhanced sensor characteristics . Our Micro and Nano Device group aims to address these challenges by devising Surface Acoustic Wave ( SAW ) and Thickness Shear Mode ( TSM ) resonator-based microsensors . Along the line , we have developed novel micro sensors to detect UV , humidity , gas pressure , liquid , and biomolecules .
The Intelligent Lighting Laboratory is working to develop lighting specialised in systems that employ LED luminaires equipped with sensors and spectral tuning features , tunable circadian lux , building mobile apps for lighting control and control automation leading to future smart lighting systems .
Our research projects are funded by our campus infrastructure fund and Ministry of Higher Education , Malaysia . Our laboratory is equipped with the necessary microfabrication and measurement facilities . Notably , we have developed our own prototypes for fabrication . These developments have led towards the invention of a low-cost Mask Aligner System and precise endpoint detector incorporated automated wet bench .
Spectrally tuneable luminaires
Human-centric lighting
Scanning Electron Microscope image of high aspect ratio resonant micropillars fabricated over a TSM resonator-based sensor to detect relative humidity

35ELECTRICAL AND COMPUTER SYSTEMS ENGINEERING

E : ramakrishnan @ monash . edu
T : + 603 5514 6256 Lens Less Mask Aligner System constructed based on UV LED technology ( Patent Pending : PI 2016704446 & PI 2015704428 )
R E S E A R C H E R P R O F I L E 2022 / 2023