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
Reference:
Dudley, A.L., 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
Dudley, A. L., Vasilyeu, R., Forbes, A., Khilo, N., & Ropot, P. (2009). Superpositions of higher-order bessel beams and nondiffracting speckle fields - (SAIP 2009). http://hdl.handle.net/10204/3760
Dudley, Angela L, R Vasilyeu, A Forbes, N Khilo, and P Ropot. "Superpositions of higher-order bessel beams and nondiffracting speckle fields - (SAIP 2009)." (2009): http://hdl.handle.net/10204/3760
Dudley AL, Vasilyeu R, Forbes A, Khilo N, Ropot P, Superpositions of higher-order bessel beams and nondiffracting speckle fields - (SAIP 2009); 2009. http://hdl.handle.net/10204/3760 .
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