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Fluorescence lifetime imaging for explosive detection
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dc.contributor.author | Matheson, Andrew B. | |
dc.contributor.author | Ogugu, Edward B. | |
dc.contributor.author | Gillanders, Ross N. | |
dc.contributor.author | Turnbull, Graham A. | |
dc.contributor.author | Henderson, Robert | |
dc.date.accessioned | 2023-11-14T17:30:09Z | |
dc.date.available | 2023-11-14T17:30:09Z | |
dc.date.issued | 2023-11-13 | |
dc.identifier | 296396637 | |
dc.identifier | 1b078173-9fbd-4b35-a25a-38c5c0a827c5 | |
dc.identifier | 85177078244 | |
dc.identifier.citation | Matheson , A B , Ogugu , E B , Gillanders , R N , Turnbull , G A & Henderson , R 2023 , ' Fluorescence lifetime imaging for explosive detection ' , Optics Letters , vol. 48 , no. 22 , pp. 6015-6018 . https://doi.org/10.1364/OL.498123 | en |
dc.identifier.issn | 0146-9592 | |
dc.identifier.other | RIS: urn:861D7EC95ED702FFD96776D993CBE45B | |
dc.identifier.other | ORCID: /0000-0002-8825-3234/work/146965255 | |
dc.identifier.uri | https://hdl.handle.net/10023/28698 | |
dc.description | Funding: Engineering and Physical Sciences Research Council (EP/R005257/1, EP/T00097X/1); NATO Science for Peace & Security Programme (MYP G5355); Commonwealth Scholarship Commission; Foreign, Commonwealth and Development Office. | en |
dc.description.abstract | In this Letter, a time-resolved 120 × 128 pixel single-photon avalanche diode (SPAD) sensor is used in conjunction with an array of organic semiconductor films as a means of detecting the presence of explosive vapors. Using the spatial and temporal resolution of the sensor, both fluorescence intensity and fluorescence lifetime can be monitored on a pixel-by-pixel basis for each of the polymer films arranged in a 2 × 2 grid. This represents a significant improvement on similar systems demonstrated in the past, which either offer spatial resolution without the temporal resolution required to monitor lifetime or offer only a single bulk measurement of lifetime and intensity without the spatial resolution. The potential of the sensing system is demonstrated using vapors of DNT, and differing responses for each of the four polymer films is observed. This system has clear applications as the basis of a portable chemical fingerprinting tool with applications in humanitarian demining and security. | |
dc.format.extent | 4 | |
dc.format.extent | 3971464 | |
dc.language.iso | eng | |
dc.relation.ispartof | Optics Letters | en |
dc.subject | Diode lasers | en |
dc.subject | Fluorescence lifetime imaging | en |
dc.subject | Imaging systems | en |
dc.subject | Photon counting | en |
dc.subject | Single-photon avalanche diodes | en |
dc.subject | Spatial resolution | en |
dc.subject | QC Physics | en |
dc.subject | DAS | en |
dc.subject.lcc | QC | en |
dc.title | Fluorescence lifetime imaging for explosive detection | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. Centre for Energy Ethics | en |
dc.contributor.institution | University of St Andrews. Sir James Mackenzie Institute for Early Diagnosis | en |
dc.contributor.institution | University of St Andrews. Centre for Biophotonics | en |
dc.contributor.institution | University of St Andrews. Organic Semiconductor Centre | en |
dc.identifier.doi | 10.1364/OL.498123 | |
dc.description.status | Peer reviewed | en |
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