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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/50582

Title: The creation and annihilation of optical vortices using cascade conical diffraction
Author: PHELAN, CIARAN
LUNNEY, JAMES GERARD
EASTHAM, PAUL
DONEGAN, JOHN FRANCIS
RAKOVICH, YURY
Sponsor: Science Foundation Ireland
Author's Homepage: http://people.tcd.ie/jlunney
http://people.tcd.ie/easthamp
http://people.tcd.ie/jdonegan
http://people.tcd.ie/rakovicy
Keywords: Optics
Birefringence
Crystal optics
Diffraction
Issue Date: 2011
Publisher: Optical Society of America
Citation: D. O Dwyer, C. F. Phelan, Y. Rakovich, P. R. Easthan, J. G. Lunney and J. F. Donegan, The creation and annihilation of optical vortices using cascade conical diffraction, Optics Express, 19, 3, 2011, 2580 2588
Series/Report no.: Optics Express;
19;
3;
Abstract: Internal conical diffraction produces a superposition of orthogonally polarised zero- and first-order Bessel like beams from an incident circularly polarised Gaussian beam. For right-circularly polarised light, the first-order beam has an optical vortex of charge 1. Upon propagation of the first-order beam through a second biaxial crystal, a process which is termed cascade conical refraction, the generated beam is a superposition of orthogonally polarised fields of charge 0 and 1 or 0 and 2. This spin to orbital angular momentum conversion provides a new method for the generation and annihilation of optical vortices in an all-optical arrangement that is solely dependent on the incident polarisation and vortex handedness.
Description: PUBLISHED
URI: http://hdl.handle.net/2262/50582
Related links: http://www.opticsinfobase.org/abstract.cfm?URI=oe-19-3-2580
Appears in Collections:Physics (Scholarly Publications)

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