Please use this identifier to cite or link to this item:
https://hdl.handle.net/1959.11/8160
Title: | An optical fibre technique for measuring optical absorption by chromophores in the presence of scattering particles | Contributor(s): | Bunganaen, Y (author); Lamb, David (author) | Publication Date: | 2005 | DOI: | 10.1088/1742-6596/15/1/012 | Handle Link: | https://hdl.handle.net/1959.11/8160 | Abstract: | The evanescent radiation field associated with a suitably-prepared silica optical fibre, whereby the outer cladding has been removed and the core immersed in a liquid, has been investigated for its applicability as a device for measuring the spectral absorption of a liquid containing both chromophore and suspended scattering material. It is found that the evanescent radiation field adjacent to the core-liquid boundary interacts with chromophores in a liquid in much the same way as radiation does when directed, unbound, through a cuvette containing the same liquid in an optical spectrophotometer. However, the small penetration depth of the evanescent field, of the order of one micron, results in a sensor which is found to be insensitive to light-scattering particulate matter than was present in the liquid. | Publication Type: | Journal Article | Source of Publication: | Journal of Physics: Conference Series, v.15, p. 67-73 | Publisher: | Institute of Physics Publishing Ltd | Place of Publication: | United Kingdom | ISSN: | 1742-6596 1742-6588 |
Fields of Research (FoR) 2008: | 020504 Photonics, Optoelectronics and Optical Communications | Socio-Economic Objective (SEO) 2008: | 960909 Mountain and High Country Land and Water Management 960905 Farmland, Arable Cropland and Permanent Cropland Water Management 960903 Coastal and Estuarine Water Management |
Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
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Appears in Collections: | Journal Article |
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