Research@StAndrews
 
The University of St Andrews

Research@StAndrews:FullText >
Physics & Astronomy (School of) >
Physics & Astronomy >
Physics & Astronomy Theses >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10023/1699
This item has been viewed 180 times in the last year. View Statistics

Files in This Item:

File Description SizeFormat
JillMorrisPhDThesis.pdf13.86 MBAdobe PDFView/Open
Title: Studies of novel beam shapes and applications to optical manipulation
Authors: Morris, Jill E.
Supervisors: Dholakia, Kishan
Keywords: Optical manipulation
Novel beams
White light
Supercontinuum
Coherence
Diffractive optics
Issue Date: 30-Nov-2010
Abstract: In this thesis an investigation into novel beams and optical manipulation is presented. Sculpting the phase profile of a Gaussian beam can result in the generation of a beam with unusual properties. Described in this thesis are optical vortices, Bessel beams and Airy beams. Additionally, optical manipulation was investigated using both novel beams and Gaussian beams with an emphasis on the use of a broad bandwidth laser source. The generation of multiple broadband optical trap sites was explored, and the transfer of orbital angular momentum from a broadband optical vortex to trapped microspheres was demonstrated. An introduction to the thesis and an overview of laser sources used for optical manipulation is presented in Chapters 1 and 2. Chapters 3 and 4 detail the background of optical manipulation and novel beam shaping. In Chapter 5, an investigation into the generation of multiple broadband optical trap sites is presented. Chapter 6 details the use of a ‘white light’ optical vortex to transfer orbital angular momentum to trapped microspheres. Chapter 7 presents the results of an investigation carried out using a supercontinuum source to characterise the wavelength and spatial coherence dependence of the properties of an optical Airy beam. The use of a monochromatic laser to generate Bessel beams that propagate along curved trajectories is detailed in Chapter 8. Chapter 9 summarises the thesis and suggests future work.
Description: Electronic version excludes material for which permission has not been granted by the rights holder
URI: http://hdl.handle.net/10023/1699
Type: Thesis
Publisher: University of St Andrews
Appears in Collections:Physics & Astronomy Theses



This item is protected by original copyright

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

DSpace Software Copyright © 2002-2012  Duraspace - Feedback
For help contact: Digital-Repository@st-andrews.ac.uk | Copyright for this page belongs to St Andrews University Library | Terms and Conditions (Cookies)