Photonic sensors at the nanoscale

Nigel P. Johnson, Basudev Lahiri, Graham Sharp, Ghazali A. Rahman, Philippe Velha, Ali Khokhar, Richard M. De La Rue, Scott McMeekin

Research output: Chapter in Book/Report/Conference proceedingConference contribution


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.
Original languageEnglish
Title of host publication14th International Conference on Transparent Optical Networks (ICTON) 2012
Number of pages4
ISBN (Print)9781467322287
Publication statusPublished - 2012


  • photonics
  • sensors


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