6533b82ffe1ef96bd1295b19
RESEARCH PRODUCT
White-light-modified Talbot array illuminator with a variable density of light spots.
Carlos J. Zapata-rodríguezVicent ClimentE. BonetEnrique TajahuercePedro Andréssubject
DiffractionMicrolensPhysicsbusiness.industryMaterials Science (miscellaneous)Physics::OpticsDiffraction efficiencyIndustrial and Manufacturing EngineeringPtychographylaw.inventionCardinal pointOpticsAchromatic lenslawTalbot effectOptoelectronicsBusiness and International ManagementbusinessFresnel diffractiondescription
A flexible array illuminator, comprising only two conventional optical elements, with a variable density of bright white-light spots is presented. The key to our method is to obtain with a single diffractive lens an achromatic version of different fractional Talbot images, produced by free-space propagation, of the amplitude distribution at the back focal plane of a periodic refractive microlens array under a broadband point-source illumination. Some experimental results of our optical procedure are also shown.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-02-21 | Applied optics |