6533b85afe1ef96bd12b8e27
RESEARCH PRODUCT
Single-zone-plate achromatic fresnel-transform setup: Pattern tunability
Enrique TajahuerceJesús LancisPedro AndrésEduardo TepichinVicent Climentsubject
DiffractionPhysicsWavefrontbusiness.industryAstrophysics::Instrumentation and Methods for AstrophysicsPhysics::OpticsZone plateAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialslaw.inventionOptical axisOpticslawAchromatic lensChromatic aberrationFresnel numberElectrical and Electronic EngineeringPhysical and Theoretical ChemistrybusinessFresnel diffractiondescription
Abstract White-light point-source illumination results in the chromatic blurring of the optical field diffracted by an aperture. In this paper, broadband dispersion compensation for a continuous set of Fresnel diffraction patterns associated with an arbitrary input transparency is carried out, in a sequential way, by means of a single on-axis blazed zone plate. The input is illuminated with a white-light converging spherical wavefront and the diffractive lens is inserted at the virtual source plane. We recognize that the position of the input along the optical axis permits to achieve a different achromatic Fresnel diffraction pattern with low residual chromatic aberrations. The theory derived here can be easily applied to allow the recording of different achromatic white-light self-images without changing the diffractive lens component, what is confirmed by our experimental results.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-03-01 |