Effect of spurious diffraction orders in arbitrary multifoci patterns produced via phase-only holograms
Applied Optics, Vol. 45, Issue 26, pp. 6689-6693 (2006)
http://dx.doi.org/10.1364/AO.45.006689
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Abstract
We analyze the effect of spurious diffraction orders when generating functional multifoci patterns produced by illuminating a phase-only hologram with a single Gaussian beam. Using a practical device for encoding a hologram generates an undesirable zero order and high-diffraction orders at the Fourier plane. This translates to the fact that a significant fraction of the incident light does not necessarily convert to functional multifoci patterns. In most applications, the zero order can be avoided by generating foci patterns shifted off the optical axis, which further increases the amount of light distributed to spurious high-diffraction orders owing to the reduction of light directed to the desired foci pattern. We analyze the amount of light dispersed to spurious orders and show that these unwanted orders can be a major limiting factor for most applications based on arbitrary multifoci patterns.
© 2006 Optical Society of America
OCIS Codes
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(090.2890) Holography : Holographic optical elements
(230.6120) Optical devices : Spatial light modulators
History
Original Manuscript: December 20, 2005
Revised Manuscript: April 5, 2006
Manuscript Accepted: April 5, 2006
Citation
Darwin Palima and Vincent Ricardo Daria, "Effect of spurious diffraction orders in arbitrary multifoci patterns produced via phase-only holograms," Appl. Opt. 45, 6689-6693 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-26-6689
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