Journal article
Smart mid-infrared metasurface microspectrometer gas sensing system
J Meng, S Balendhran, Y Sabri, SK Bhargava, KB Crozier
Microsystems and Nanoengineering | SPRINGERNATURE | Published : 2024
Abstract
Smart, low-cost and portable gas sensors are highly desired due to the importance of air quality monitoring for environmental and defense-related applications. Traditionally, electrochemical and nondispersive infrared (IR) gas sensors are designed to detect a single specific analyte. Although IR spectroscopy-based sensors provide superior performance, their deployment is limited due to their large size and high cost. In this study, a smart, low-cost, multigas sensing system is demonstrated consisting of a mid-infrared microspectrometer and a machine learning algorithm. The microspectrometer is a metasurface filter array integrated with a commercial IR camera that is consumable-free, compact ..
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Grants
Awarded by State Government of Victoria
Funding Acknowledgements
This work was supported in part by the Department of Defence's "Operating in CBRN Environments" STaR Shot and the Defence Science Institute under the Hazardous Agents Challenge. The Defence Science Institute is an initiative of the State Government of Victoria. This work was supported in part by the Australian Research Council (ARC) Centre of Excellence for Transformative Meta-Optical Systems (TMOS, CE200100010). This work was performed in Bhargava's laboratory for Chemical Sensing in CAMIC. This work was performed in part at the Melbourne Centre for Nanofabrication (MCN) in the Victorian Node of the Australian National Fabrication Facility (ANFF). This work was supported in part by the MCN Technology Fellow Ambassador program. Distinguished Professor Suresh Bhargava expresses his gratitude towards his mentor & PhD supervisor the late Professor E. W. Abel, University of Exeter, UK for giving him the power of knowledge and mentorship to produce the next generation of scientists.