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From stationary annular rings to rotating Bessel beams |
JOSA A, Vol. 29, Issue 4, pp. 567-573 (2012)
http://dx.doi.org/10.1364/JOSAA.29.000567
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Abstract
In this work we use a phase-only spatial light modulator (SLM) to mimic a ring-slit aperture, containing multiple azimuthally varying phases at different radial positions. The optical Fourier transform of such an aperture is currently known and its intensity profile has been shown to rotate along its propagation axis. Here we investigate the near-field of the ring-slit aperture and show, both experimentally and theoretically, that although the near-field possesses similar attributes to its Fourier transform, its intensity profile exhibits no rotation as it propagates.
© 2012 Optical Society of America
OCIS Codes
(090.1995) Holography : Digital holography
(070.3185) Fourier optics and signal processing : Invariant optical fields
(050.4865) Diffraction and gratings : Optical vortices
(070.6120) Fourier optics and signal processing : Spatial light modulators
ToC Category:
Fourier Optics and Signal Processing
History
Original Manuscript: November 28, 2011
Revised Manuscript: December 21, 2011
Manuscript Accepted: December 21, 2011
Published: March 22, 2012
Citation
Angela Dudley and Andrew Forbes, "From stationary annular rings to rotating Bessel beams," J. Opt. Soc. Am. A 29, 567-573 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-4-567
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