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RESEARCH PRODUCT
Generation of Bessel beam arrays through Dammann gratings.
Don M. CottrellPascuala García-martínezJeffrey A. DavisMaría Del Mar Sánchez-lópezIgnacio MorenoDavid Sandsubject
DiffractionLightOptical PhenomenaPhase (waves)Physics::OpticsGratingAxiconOpticsScattering RadiationComputer SimulationElectrical and Electronic EngineeringEngineering (miscellaneous)Diffraction gratingPhysicsSpatial light modulatorbusiness.industryLasersOptical DevicesEquipment DesignModels TheoreticalAtomic and Molecular Physics and OpticsLiquid CrystalsRefractometryBessel beamComputer-Aided DesignbusinessPhase modulationAlgorithmsdescription
In this work we apply the Dammann grating concept to generate an equal-intensity square array of Bessel quasi-free diffraction beams that diverge from a common center. We generate a binary phase mask that combines the axicon phase with the phase of a Dammann grating. The procedure can be extended to include vortex spiral phases that generate an array of optical pipes. Experimental results are provided by means of a twisted nematic liquid crystal display operating as a binary π phase spatial light modulator.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-03-15 | Applied optics |