I am a Research Group Leader and Senior Lecturer at the Department of Electrical and Electronic Engineering at University of Melbourne. My research areas span CMOS image sensors, drones based sensors and applications, electronic sensors for biomedical applications, thermal image cameras and nanophotonic engineering.
My career started as Scientist/Engineer at Indian Space Research Organization, Bangalore. I was involved in India's first mission to moon “Chandrayaan -1”. I was awarded with Young Scientist award by His Excellency, The President of India in 2007 for my contributions.
During my PhD in Electrical Engineering at Cambridge, I developed a voltage reconfigurable nanophotonic phase modulator with more than one million phase modulating elements in a very small area in silicon. After finishing my PhD, I worked as a postdoctoral researcher and project manager in the Electrical Engineering Department at Cambridge for a Samsung project. I joined the University of Melbourne as a lecturer in 2014.
INNOVATION AND ENTREPRENEURSHIP:
• Co-founder and Director of Sensor Research, Hort-Eye Pty Ltd, precision agriculture drone sensing company founded by a team from the University of Melbourne and aligned in partnership with XM2, a major drone equipment and services company.
• Won the Transurban Innovation Competition 2017 for research into a speed sensor with LED lights, which once attached to the road surface could provide real-time customised signals encouraging speeding drivers to slow down.
• Won two innovation competitions from Cambridge University Entrepreneurs in 2011, which were reported in Cambridge Elevator news as ‘25 Cambridge technologies that could change the world’.
• Awarded with CambridgeSens innovation awards both in 2009 and 2010
Find out more about Ranjith Rajasekharan Unnithan's experience
Ranjith Rajasekharan Unnithan's highlights
Ranjith Rajasekharan Unnithan's selected work
A single sensor based multispectral imaging camera using a narrow spectral band color mosa..
Fully Solution-Processed Transparent Artificial Neural Network Using Drop-On-Demand Electr..
Displaying the 19 most recent projects by Ranjith Rajasekharan Unnithan.
Internal Research Grant
Displaying the 47 most recent scholarly works by Ranjith Rajasekharan Unnithan.
3-D Printed Planar Dielectric Linear-to-Circular Polarization Conversion and Beam-Shaping Lenses Using Coding Polarizer
J Zhu, Y Yang, D McGloin, R Rajasekharan Unnithan, S Li, S Liao, Q Xue
Journal article | 2020 | IEEE Transactions on Antennas and Propagation
This article presents a new linear-to-circular polarization conversion coding unit, on which two new kinds of beam-shaping lenses ..
A single sensor based multispectral imaging camera using a narrow spectral band color mosaic integrated on the monochrome CMOS image sensor
Xin He, Yajing Liu, Kumar Ganesan, Arman Ahnood, Paul Beckett, Fatima Eftekhari, Dan Smith, Md Hemayet Uddin, Efstratios Skafidas, Ampalavanapillai Nirmalathas, Ranjith Rajasekharan Unnithan
Journal article | 2020 | APL Photonics
A multispectral image camera captures image data within specific wavelength ranges in narrow wavelength bands across the electroma..
Fully Solution-Processed Transparent Artificial Neural Network Using Drop-On-Demand Electrohydrodynamic Printing
J Yong, Y Liang, Y Yu, B Hassan, MS Hossain, K Ganesan, RR Unnithan, R Evans, G Egan, G Chana, B Nasr, E Skafidas
Journal article | 2019 | ACS Applied Materials & Interfaces
© 2019 American Chemical Society. Artificial neural networks (ANN), deep learning, and neuromorphic systems are exciting new proce..
Plasmonic Narrow Bandpass Filters Based on Metal-Dielectric-Metal for Multispectral Imaging
X He, N O'keefe, D Sun, Y Liu, H Uddin, A Nirmalathas, RR Unnithan
Conference Proceedings | 2019 | CLEO Pacific Rim Conference
© 2018 OSA. This paper presents a novel plasmonic filter design to reduce the full width half maximum (FWHM) of transmission spect..
High-dimensional Stokes vector direct detection over few-mode fibers
Honglin Ji, Di Che, Chuanbowen Sun, Jian Fang, Giovanni Milione, Ranjith Rajasekharan Unnithan, William Shieh
Journal article | 2019 | Optics Letters
Direct detection attracts much attention for its simplicity compared with coherent detection. In this Letter, we propose for the f..
Nanoscale Materials and Devices for Future Communication Networks
Miao Sun, Mohammad TAHA, Sumeet Walia, Madhu Bhaskaran, Sharath Sriram, William Shieh, Ranjith Rajasekharan Unnithan
Book Chapter | 2019
There is an ever-increasing demand in bandwidth and data rate in optical communications, internet, sensing, computing, machine lea..
Filling schemes at submicron scale: Development of submicron sized plasmonic colour filters
Ranjith Rajasekharan, Eugeniu Balaur, Alexander Minovich, Sean Collins, Timothy D James, Amir Djalalian-Assl, Kumaravelu Ganesan, Snjezana Tomljenovic-Hanic, Sasikaran Kandasamy, Efstratios Skafidas, Dragomir N Neshev, Paul Mulvaney, Ann Roberts, Steven Prawer
Journal article | 2014 | SCIENTIFIC REPORTS
Electrically Switchable Diffraction Grating Using a Hybrid Liquid Crystal and Carbon Nanotube-Based Nanophotonic Device
Kanghee Won, Ananta Palani, Haider Butt, Philip JW Hands, Ranjith Rajeskharan, Qing Dai, Ammar Ahmed Khan, Gehan AJ Amaratunga, Harry J Coles, Timothy D Wilkinson
Journal article | 2013 | Advanced Optical Materials
Displaying the most recent news article by Ranjith Rajasekharan Unnithan.
Honours, Awards and Fellowships
Received $1275 to utilise the MCN for my proposed work, 'Submicron pixels with plasmonic filters'.
Merit Alocation Scheme
Won two awards for the proposals, "3D insect eye based endoscope" and "Do images really need pixels?"
A grant of $3000 awarded for interdisciplinary research in nanotechnology and appointed as a NanoDTC Associate at the University of Cambridge.
A grant of GBP15,000 was awarded for the proposal to develop 'a flat nano 3D vision sensor' by the University of Cambridge.
A grant of GBP5,000 was awarded for the proposal to develop 'chemical nano-diodes (CNDs) and biochemical nano-photo diodes (BNPDs).
Young Scientist Award from His Excellency the President of India
Assoc Prof, Electrical & Electronic Eng
Electrical And Electronic Engineering
Institute of Electrical and Elecronics Engineers
The International Society for Optics and Photonics
Australian Optical Society
Optical Society of India
Optical Society of America
PhD in Engineering
University of Cambridge