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http://hdl.handle.net/10204/3760
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| Title: | Superpositions of higher-order bessel beams and nondiffracting speckle fields - (SAIP 2009) |
| Authors: | Dudley, A
Vasilyeu, R
Forbes, A
Khilo, N
Ropot, P |
| Keywords: | Bessel beams
Higher-order bessel beams
Nondiffracting speckle fields
Spatial light modulator
Ring slit aperture
Computer generated holograms
54th Annual Conference of the South African Institute of Physics
Laser
Optics
Physics |
| Issue Date: | Jul-2009 |
| Citation: | Dudley, A, Vasilyeu, R, Forbes, A et al. 2009. Superpositions of higher-order Bessel beams and nondiffracting speckle fields. 54th Annual Conference of the South African Institute of Physics (SAIP), Durban, South Africa, 6-10 July 2009, pp 1 |
| Abstract: | This poster presents a mechanism for the generation of the superposition of higher-order Bessel beams, which implements a ring slit aperture and spatial light modulator (SLM). The experimental technique is also adapted to generate nondiffracting speckle fields. The paper reports on illuminating a ring slit aperture with light which has an azimuthal phase dependence, such that the field produced is a superposition of two higher-order Bessel beams. In the case that the phase dependence of the light illuminating the ring slit aperture is random, a nondiffracting speckle field is produced. The experimentally produced fields are in good agreement with those calculated theoretically |
| Description: | 54th Annual Conference of the South African Institute of Physics (SAIP), Durban, South Africa, 6-10 July 2009 |
| URI: | http://hdl.handle.net/10204/3760 |
| Appears in Collections: | Laser physics and technology
General science, engineering & technology
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