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Show simple item record Dudley, Angela L 2012-11-26T08:16:47Z 2012-11-26T08:16:47Z 2012-01
dc.identifier.citation Dudley, A.L. 2012. Superpositions of light fields carrying orbital angular momentum. University of KwaZulu-Natal en_US
dc.description A thesis submitted in fulfilment of the academic requirements for the PhD degree of Science in the School of Chemistry and Physics, University of KwaZulu-Natal, Durban. en_US
dc.description.abstract The work presented in this thesis is centred on the generation of superimposed optical fields which each carry orbital angular momentum (OAM) and the development of OAM measurement techniques. Optical fields which carry OAM have found applications ranging from optical tweezing to quantum cryptography. Due to the fact that they offer a potentially infinite-dimensional state space, much interest has been generated in the measurement of OAM in optical fields, in order for higher-dimensional quantum information processing to be realised. In this study we generate superpositions of higher-order Bessel beams and show that even though we can create a field which carries no overall OAM, we can still witness an angular rotation in the intensity profile of the beam. We also develop two new OAM measurement techniques: (1) a robust odd-even-OAM interferometer and (2) a method to measure the OAM density of an optical field by means of a single spatial light modulator (SLM). en_US
dc.language.iso en en_US
dc.relation.ispartofseries Workflow;9626
dc.subject Optical fields en_US
dc.subject Light fields en_US
dc.subject Orbital angular momentum en_US
dc.subject OAM en_US
dc.subject Bessel beams en_US
dc.subject Spatial Light Modulator en_US
dc.subject SLM en_US
dc.title Superpositions of light fields carrying orbital angular momentum en_US
dc.type Thesis en_US

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