dc.contributor.author | Wiggin, Saul Joseph | |
dc.date.accessioned | 2017-07-13T12:15:22Z | |
dc.date.available | 2017-07-13T12:15:22Z | |
dc.date.issued | 2017-01-13 | |
dc.date.submitted | 2017-07-13T12:23:38.657Z | |
dc.identifier.citation | Wiggin, S.J. 2017. The Imaging Properties of A Transformation Optics Designed Cooke Triplet. Queen Mary University of London | en_US |
dc.identifier.uri | http://qmro.qmul.ac.uk/xmlui/handle/123456789/24861 | |
dc.description | PhD, 125pp | en_US |
dc.description.abstract | This thesis proposes to design a Triplet lens using Metamaterials (MTM) and Discrete Trans-
formation Optics (DCT) modelled on the three lens Cooke Triplet. MTMs are arti cially en-
gineered materials with values of permittivity and permeability outside the range of naturally
occurring materials. Metamaterials suffer from inherent losses and narrowband operation.
To overcome these limitations Discrete Coordinate Transformation Optics has been used to
design an all-dielectric DCT Triplet. The proposed MTM triplet is matched to free space
and it suffers less re
ections from the incident waves. The MTM and DCT Triplet can be
designed to have a
at surface which would allow greater interoperability with other optical
systems. The eld of view in the MTM triplet is not limited as it is in the original Cooke
Triplet suggesting there is a place for MTM lenses with larger than typical eld of view.
In this thesis a Cooke Triplet designed using Metamaterials and the Discrete Coordinate
Transformation method is analysed as a potential replacement for the original Cooke Triplet
lens.
A coordinate system is modelled using grid generation software and ray propagation
in optical designers software is used to model the geometry of the MTM Cooke Triplet. An
FDTD simulation models the electromagnetic eld of the Cooke Triplet, MTM Triplet and
All-Dielectric lens with a plane wave, an off axis source and a Gaussian pulse. The lenses
are analysed in terms of Seidel aberrations in order to determine the suitability for optical
imaging of the MTM Triplet. The lenses are subjected to Zernike analysis of their wavefront
aberration to yield further information on the optics of the different lenses. The FDTD
simulation, focal lengths, wavefront aberration function and Zernike aberration function on
a unit disk and Zernike aberration coefficients show good agreement between the original
Cooke Triplet, MTM Triplet and DCT Triplet. | en_US |
dc.description.sponsorship | Cooperative Awards in Science and Technology (CASE) Stipend into Metamaterials and Transformation Optics funded by
The Defence Science and Technology Laboratory (DSTL) | en_US |
dc.language.iso | en | en_US |
dc.publisher | Queen Mary University of London | en_US |
dc.rights | The copyright of this thesis rests with the author and no quotation from it or information derived from it may be published without the prior written consent of the author | |
dc.subject | Electronic Engineering and Computer Science | en_US |
dc.subject | Triplet lens | en_US |
dc.subject | Metamaterials | en_US |
dc.subject | Discrete Trans- formation Optics | en_US |
dc.title | The Imaging Properties of A Transformation Optics Designed Cooke Triplet | en_US |
dc.type | Thesis | en_US |