Photonic sensors at the nanoscale

Johnson, N.P., Lahiri, B., Sharp, G., Rahman, G.A., Velha, P., Khokhar, A., De La Rue, R.M. and McMeekin, S. (2012) Photonic sensors at the nanoscale. In: Transparent Optical Networks (ICTON), 2012 14th International Conference on, University of Warwick, Coventry, UK., 2-5 July 2012, pp. 1-4. (doi: 10.1109/ICTON.2012.6253887)

Abstract

Photonic device structures such as photonic crystals, photonic wires and optical metamaterials - all with submicron features can be described as `nanophotonic'. Many of these devices and structures can be used as sensors. The usual approach is to photonic sensing is to change the refractive index of a surrounding medium. Here we consider several nanophotonic sensing systems, including asymmetric split ring resonators, photonic wire cavities and polymer Bragg gratings. We compare the relative merits of high Q structures with a small shift in wavelength from the analyte versus low Q structures with a large shift in wavelength.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Johnson, Dr Nigel and Khokhar, Dr Ali and De La Rue, Professor Richard and Velha, Mr Philippe and Sharp, Mr Graham and Lahiri, Dr Basudev
• Authors: Johnson, N.P., Lahiri, B., Sharp, G., Rahman, G.A., Velha, P., Khokhar, A., De La Rue, R.M., and McMeekin, S.
• College/School: College of Science and Engineering > School of Engineering > Biomedical Engineering; College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering