A chemical sensor based on a photonic-crystal L3 nanocavity defined in a silicon-nitride membrane

Simple item page
dc.contributor.authorDeasy, Kieran
dc.contributor.authorSediq, Khalid N.
dc.contributor.authorBrittle, Stuart
dc.contributor.authorWang, Tao
dc.contributor.authorDavis, Frank
dc.contributor.authorRichardson, Tim H.
dc.contributor.authorLidzey, David G.
dc.date.accessioned2016-05-24T10:53:51Z
dc.date.available2016-05-24T10:53:51Z
dc.date.issued2014-08-27
dc.description.abstractThe application of a silicon-nitride based L3 optical nanocavity as a chemical sensor is explored. It is shown that by adjusting the thickness of an ultra-thin Lumogen Red film deposited onto the nanocavity surface, the fundamental optical mode undergoes a progressive red-shift as the layer-thickness increases, with the cavity being able to detect the presence of a single molecular monolayer. The optical properties of a nanocavity whose surface is coated with a thin layer of a porphyrin-based polymer are also explored. On exposure of the cavity to an acidic-vapour, it is shown that changes in the optical properties of the porphyrin-film (thickness and refractive index) can be detected through a reversible shift in the cavity mode wavelength. Such effects are described using a finite difference time-domain model.en_UK
dc.identifier.citationDeasy et al. (2014) A chemical sensor based on a photonic-crystal L3 nanocavity defined in a silicon-nitride membrane, Journal of Materials Chemistry C, Vol. 2, Iss. 41, pp. 2-41en_UK
dc.identifier.issn2050-7526
dc.identifier.urihttp://dx.doi.org/10.1039/C4TC01320D
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/9909
dc.language.isoenen_UK
dc.publisherRoyal Society of Chemistryen_UK
dc.rightsAttribution-Non-Commercial 3.0 Unported (CC BY-NC 3.0) You are free to: Share — copy and redistribute the material in any medium or format, Adapt — remix, transform, and build upon the material. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: Non-Commercial — You may not use the material for commercial purposes. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.en_UK
dc.titleA chemical sensor based on a photonic-crystal L3 nanocavity defined in a silicon-nitride membraneen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
A_chemical_sensor_based_on_a_photonic-crystal_L3_nanocavity-2014.pdf
Size:
581.27 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.79 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SATM)