Plasmonic sensor monolithically integrated with a CMOS photodiode

Shakoor, A. , Cheah, B. C. , Hao, D., Al-Rawhani, M., Nagy, B., Grant, J. , Dale, C., Keegan, N., McNeil, C. and Cumming, D. R.S. (2016) Plasmonic sensor monolithically integrated with a CMOS photodiode. ACS Photonics, 3(10), pp. 1926-1933. (doi: 10.1021/acsphotonics.6b00442)

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Complementary metal oxide semiconductor (CMOS) technology has made personal mobile computing and communications an everyday part of life. In this paper we present a nanophotonic integrated CMOS-based biosensor that will pave the way for future personalized medical diagnostics. To achieve our aim, we have monolithically integrated plasmonic nanostructures with a CMOS photodiode. Following this approach of monolithic nanophotonics–microelectronics integration, we have successfully developed a miniaturized nanophotonic sensor system with direct electrical readout, which eliminates the need of bulky and costly equipment that is presently used for interrogation of nanophotonic sensors. The optical sensitivity of the plasmonic nanostructures is measured to be 275 nm/refractive index unit (RIU), which translates to an electrical sensitivity of 5.8 V/RIU in our integrated sensor system. This advance is the first demonstration of monolithic integration of nanophotonic structures with CMOS detectors and is a crucial step toward translating laboratory based nanophotonic sensing systems to portable, low-cost, and digital formats.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Al-Rawhani, Dr Mohammed and Cumming, Professor David and Hao, Miss Danni and Cheah, Dr Boon Chong and Grant, Dr James and Nagy, Mr Bence and Shakoor, Dr Abdul
Authors: Shakoor, A., Cheah, B. C., Hao, D., Al-Rawhani, M., Nagy, B., Grant, J., Dale, C., Keegan, N., McNeil, C., and Cumming, D. R.S.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:ACS Photonics
Publisher:American Chemical Society
ISSN (Online):2330-4022
Published Online:16 September 2016
Copyright Holders:Copyright © 2016 American Chemical Society
First Published:First published in ACS Photonics3(10):1926-1933
Publisher Policy:Reproduced under a Creative Commons License
Data DOI:10.5525/gla.researchdata.295

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
605821The Multi-Corder: Poly-Sensor TechnologyDavid CummingEngineering & Physical Sciences Research Council (EPSRC)EP/K021966/1ENG - ENGINEERING ELECTRONICS & NANO ENG