Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598569
Title: The design, fabrication and characterization of holographic optical elements
Author: Dobson, C. A.
Awarding Body: University of Cambridge
Current Institution: University of Cambridge
Date of Award: 2008
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Abstract:
This thesis presents data on the fabrication and characterisation of a series of holograms of reflective optical devices to produce holographic optical elements (HOEs) for use as (bio)sensors to circumvent the viewing angle issues described above. Gratings were recorded in gelatin and pH- and alcohol-sensitive polymers and the maximum viewing angle of each hologram (and its associated wavelength) measured in these systems. Recordings of convex mirrors provided the greatest improvement in both maximum viewing angle and wavelength stability over the planar holograms used previously. Of these, those with a ratio of focal length, f to diameter, d (f/d) ≥ 1 offer the most improvement as they exhibit a large maximum viewing angle with little wavelength shift over this range. Characterisation of analyte-sensitive polymer holograms indicated that the behaviour of an HOE is largely independent of the polymer in which it is recorded and, for a given polymer, the observed behaviour is unchanged irrespective of the element that is recorded in its volume (with the exception of changes to the maximum viewing angle and wavelength shift).
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.598569  DOI: Not available
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