CUED Publications database

Filterless non-dispersive infra-red gas detection: A proof of concept

De Luca, A and Ali, SZ and Hopper, RH and Boual, S and Gardner, JW and Udrea, F (2017) Filterless non-dispersive infra-red gas detection: A proof of concept. In: UNSPECIFIED pp. 1220-1223..

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For the first time, we demonstrate the detection of carbon dioxide (CO ) using a non-dispersive infra-red (NDIR) technique that does not require an expensive CMOS-incompatible optical filter. This is achieved by employing a differential IR thermopile detector with micro-engineered (plasmonic) optical properties, fabricated in a commercially available standard CMOS MEMS process. The proof of concept demonstrated here represents a milestone in low-cost gas sensing spectroscopy, and has the potential to impact profoundly in the entire IR field; many consumer electronics applications (wearables, smartphones, tablets and portable medical devices) will become viable, leading to high volume commercial applications for plasmonic devices. 2

Item Type: Conference or Workshop Item (UNSPECIFIED)
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:21
Last Modified: 10 Apr 2021 22:22
DOI: 10.1109/MEMSYS.2017.7863636