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Details of Grant 

EPSRC Reference: GR/N37117/01
Title: BESSEL BEAMS AND BESSEL RESONATORS
Principal Investigator: New, Professor G
Other Investigators:
Dainty, Professor JC
Researcher Co-Investigators:
Project Partners:
Department: Dept of Physics
Organisation: Imperial College London
Scheme: Standard Research (Pre-FEC)
Starts: 04 September 2000 Ends: 03 December 2001 Value (£): 47,571
EPSRC Research Topic Classifications:
Lasers & Optics
EPSRC Industrial Sector Classifications:
No relevance to Underpinning Sectors
Related Grants:
Panel History:  
Summary on Grant Application Form
We propose to undertake an analytical and numerical study of Bessel beams in general, and Bessel beams resonators in particular.A Bessel Beam (BB) represents the archetypal non-diffracting optical wave, In the simplest picture a BB is formed in the interference between inward and outward going conical waves represented mathematically by Hankel functions. This invites the conjecture ( which we have recently shown to be correct) that an optical cavity formed by one or more conical mirrors will exhibit BB modes. Such a cavity provides the potential basis for a BB laser.We will also investigate the wider properties of non-diffracting beams including pulsed BB and consider potential links with adaptive optics.While the lowest order BB has a central intensity maximu, higher-order modes have a zero on axis and the associated tubes of light have potential application as atom guides in atom optics experiments.
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Organisation Website: http://www.imperial.ac.uk