Prof. Malin Premaratne

Professor and Vice President, Academic Board Deputy Head of Department Director of Research Department of Electrical and Computer Systems Engineering, Monash University
Prof. Malin Premaratne
Prof. Malin Premaratne
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Malin has made significant and lasting contributions in modelling quantum devices, particularly lasers, spasers, and optical amplifiers, and published over 250 journal papers and two books.

Malin has approached modelling complex quantum energy sources in a hybrid form where he captures essential physics (e.g., using quantum electrodynamics (QED) ) but blends that with engineering philosophy (e.g., signal flow graphs, transfer functions) where practical use and analytical tractability are given priority. It combines formal reasoning with intuitive insights.
Even though Malin and his coworkers' associated body of work spans decades, Cambridge University Press has published the central ideas in the text "Theoretical foundations of nanoscale quantum devices" (2021). The profound impact of this work on the research community and society is noteworthy. Examples include new-theory (QED tailored for nanodevices), novel-devices (carbon-spaser), commercial-software (VPI configuration design suite), improved design of hardware (Agilent external-cavity lasers), and quantum-enlightenment for engineers; an insightful understanding of the design and operation of quantum devices. Malin's main contributions are in theory, solution methods, and computation. Thus, Malin has an immense impact on developing human skills in disseminating scientific knowledge by training researchers in the art of modelling active optical devices. Malin has won over $4.0 million in direct funding, over $4.2 million in student scholarship funding, and about $750,000 on computer resources and time from competitive grants agencies, including the Australian Research Council (ARC) for this work. He has spent most of this funding to train over 60 PhD students to completion.

Malin has worked in industry before joining academia. From 1998 to 2000, he was with the Photonics Research Laboratory, The University of Melbourne, where he was the Co-project Leader of the CRC Optical Amplifier Project and was also associated with Telstra, Australia, and Hewlett Packard, USA. From 2001 to 2003, Malin worked as a consultant to several companies, including Cisco, Lucent Technologies, Ericsson, Siemens, VPISystems, Telcordia Technologies, Ciena, and Tellium. Since 2004, he has guided the research program in high-performance computing applications to complex systems simulations at the Advanced Computing and Simulation Laboratory, Monash University, Clayton, where he holds many senior positions and is a Full Professor. He has visiting appointments with The University of California Los Angeles (UCLA), Jet Propulsion Laboratory at Caltech, Oxford University, The University of Melbourne, and Institute of Optics University of Rochester. Malin has given presentations on optical devices' modelling and simulation at many major international meetings, schools, and scientific institutions in the USA, Europe, Asia, and Australia. Currently, he is an associate editor for IEEE Photonics Technology Letters, IEEE Photonics Journal, and The Optical Society (OSA) Advances in Optics and Photonics Journal. Professor Premaratne is a Fellow of the Optical Society of America (FOSA), a Fellow of the Society of Photo-Optical Instrumentation Engineers USA (FSPIE), a Fellow of the Institution of Engineering and Technology UK (FIET), and a Fellow of The Institute of Engineers Australia (FIEAust).

PhD - Doctor of Philosophy in Photonics/Optics, The University of Melbourne
BE - Bachelor of Engineering in Electrical and Electronics Engineering, The University of Melbourne
BSc - Bachelor of Science in Mathematics, The University of Melbourne
GradCertHE - Graduate Certificate in Higher Education, Monash University Clayton

Fellow, the Society of Photo-Optical Instrumentation Engineers USA (FSPIE).
Fellow, the Institution of Engineering and Technology UK (FIET)
Fellow, Institution of Engineers Australia (FIEAust).
Chairman, IEEE Photonics Society Victoria Australia.
Executive Member Institution of Engineers IT/EE College Victoria Australia.

Associate Editor OSA Advances in Optics and Photonics.
Associate Editor IEEE Photonics Journal.
Associate Editor IEEE Photonics Technology Letters.

Visiting Researcher, Australian National University
Visiting Researcher, NASA Jet Propulsion Laboratory
Visiting Researcher, The University of Melbourne
Visiting Researcher, University of California
Visiting Researcher, University of Oxford
Visiting Researcher, University of Rochester

Chiral Plasmonic Ellipsoids: An Extended Mie-Gans Model

Mie–Gans theory optically characterizes ellipsoidal and by extension generally elongated nonchiral metal nanoparticles (MNPs) and is ubiquitous in verifying experimental results and predicting particle behavior. Recently, elongated chiral MNPs have garnered enthusiasm, but a theory to characterize their chiroptical behavior is lacking in the literature. In this Letter, we present an ab initio model for chiral ellipsoidal MNPs to address this shortcoming and demonstrate that it reduces to the general Mie–Gans model under nonchiral conditions, produces results that concur with state-of-the-art numerical simulations, and can accurately replicate recent experimental measurements. Furthermore, to gain physical insights, we analyze factors such as background medium permittivity and particle size that drive the chiroptical activity using two types of plasmonic chiral MNPs. We also demonstrate the utility of our model in metamaterial design. Generic features of our model can be extended to characterize similar elongated chiral MNPs, fueling many other variants of the current model.