Spectral Characterization of Optical Aberrations in Fluidic Lenses

GRACIANA PUENTES; FERNANDO MINOTTI

Frontiers in Physics

Frontiers

Lugar: Basel; Año: 2023 vol. 11

We report an extensive numerical study and supporting experimental results on the spectral characterization of optical aberrations in macroscopic fluidic lenses with tunable focaldistance and aperture shape. Using a Shack-Hartmann wave-front sensor we experimentallyreconstruct the near-field wave-front transmitted by the fluidic lenses, and we characterize the chromatic aberrations in terms of Zernike polynomials in the visible range. Moreover, we further classify the spectral response of the lenses using clustering techniques, in addition to correlation and convolution measurements. Experimental results are in agreement with our theoretical model of the non-linear deformation of thin elastic membranes.