Hollow core photonic crystal fibre as a viscosity and Raman sensor

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dc.contributor.advisor Gunning, Fatima C. Garcia en
dc.contributor.advisor Ruth, Albert A.
dc.contributor.author Horan, Laura E.
dc.date.accessioned 2014-03-10T14:26:15Z
dc.date.available 2014-03-10T14:26:15Z
dc.date.issued 2013
dc.date.submitted 2013
dc.identifier.citation Horan, L. E. 2013. Hollow core photonic crystal fibre as a viscosity and Raman sensor. PhD Thesis, University College Cork. en
dc.identifier.endpage 178 en
dc.identifier.uri http://hdl.handle.net/10468/1438
dc.description.abstract This PhD thesis investigates the application of hollow core photonic crystal fibre for use as an optical fibre nano litre liquid sensor. The use of hollow core photonic crystal fibre for optical fibre sensing is influenced by the vast wealth of knowledge, and years of research that has been conducted for optical waveguides. Hollow core photonic crystal fibres have the potential for use as a simple, rapid and continuous sensor for a wide range of applications. In this thesis, the velocity of a liquid flowing through the core of the fibre (driven by capillary forces) is used for the determination of the viscosity of a liquid. The structure of the hollow core photonic crystal fibre is harnessed to collect Raman scatter from the sample liquid. These two methods are integrated to investigate the range of applications the hollow core photonic crystal fibre can be utilised for as an optical liquid sensor. Understanding the guidance properties of hollow core photonic crystal fibre is forefront in dynamically monitoring the liquid filling. When liquid is inserted fully or selectively to the capillaries, the propagation properties change from photonic bandgap guidance when empty, to index guidance when the core only is filled and finally to a shifted photonic bandgap effect, when the capillaries are fully filled. The alterations to the guidance are exploited for all viscosity and Raman scattering measurements. The concept of the optical fibre viscosity sensor was tested for a wide range of samples, from aqueous solutions of propan-1-ol to solutions of mono-saccharides in phosphate buffer saline. The samples chosen to test the concept were selected after careful consideration of the importance of the liquid in medical and industrial applications. The Raman scattering of a wide range of biological important fluids, such as creatinine, glucose and lactate were investigated, some for the first time with hollow core photonic crystal fibre. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher University College Cork en
dc.rights © 2013, Laura E. Horan. en
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/ en
dc.subject Hollow core photonic crystal fibre en
dc.subject Optical liquid sensor en
dc.subject.lcsh Optical fiber communication en
dc.subject.lcsh Optical wave guides en
dc.title Hollow core photonic crystal fibre as a viscosity and Raman sensor en
dc.type Doctoral thesis en
dc.type.qualificationlevel Doctoral en
dc.type.qualificationname PhD (Science) en
dc.internal.availability Full text available en
dc.check.info No embargo required en
dc.description.version Accepted Version
dc.contributor.funder Irish Research Council for Science Engineering and Technology en
dc.description.status Peer reviewed en
dc.internal.school Physics en
dc.check.type No Embargo Required
dc.check.reason No embargo required en
dc.check.opt-out Not applicable en
dc.thesis.opt-out false
dc.check.embargoformat Not applicable en
ucc.workflow.supervisor fatima.gunning@tyndall.ie
dc.internal.conferring Spring Conferring 2014 en


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© 2013, Laura E. Horan. Except where otherwise noted, this item's license is described as © 2013, Laura E. Horan.
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