Encoding multiplexed Fresnel lenses in low-resolution devices

Eduard Carcole; Juan Carlos Campos Rubio; Maria Sagrario Millan Garcia-Verela

doi:10.1117/12.246725

23 August 1996 Encoding multiplexed Fresnel lenses in low-resolution devices

Eduard Carcole, Juan Carlos Campos Rubio, Maria Sagrario Millan Garcia-Verela

Proceedings Volume 2774, Design and Engineering of Optical Systems; (1996) https://doi.org/10.1117/12.246725
Event: Optical Instrumentation and Systems Design, 1996, Glasgow, United Kingdom

Abstract

In this communication, we calculate the reconstruction of a phase-only hologram corresponding to the linear combination of two phase functions. We multiplex two phase functions in a phase-only device and we study the performance of this hologram theoretically and experimentally. As a particular case, two Fresnel lenses are multiplexed and the performance characteristics are derived. We then study the effects of encoding the phase-only multiplexed hologram in a low resolution device. We show that the low resolution effects on the hologram performance are not negligible and the point spread function and the diffraction efficiency shows a strong dependence with the location and focal length. We study how to take these effects into account in order to obtain the desired performance.

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Eduard Carcole, Juan Carlos Campos Rubio, and Maria Sagrario Millan Garcia-Verela "Encoding multiplexed Fresnel lenses in low-resolution devices", Proc. SPIE 2774, Design and Engineering of Optical Systems, (23 August 1996); https://doi.org/10.1117/12.246725

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KEYWORDS

Fresnel lenses

Holograms

Multiplexing

Diffraction

Point spread functions

Computer programming

Lenses

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