Author(s): Lenny A Romero, María S Millán and Elisabet Pérez-Cabré


“In this work we analyse the generation of a diffractive optical element (DOE) consisting of a multifocal Fresnel lens by means of an LCoS (liquid cristal on silicon) spatial light modulator (SLM). The multifocal lens is composed of a set of lenses of different focal length that share a common optical axis (coaxial combination) or have different axes in parallel (multi-axis combination). For both configurations, we present several ways to combine the phase distributions for three lenses with different focal lengths (f1, f2, f3), into a single-phase distribution addressed to the SLM. Numerical simulations were carried out along with the experimental analysis to corroborate the results.”

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Publication: Journal of Physics: Conference Series
Issue/Year: J. Phys.: Conf. Ser. 274 012050 (2011)
DOI: 10.1088/1742-6596/274/1/012050