Hyperspectral Shack-Hartmann test

Appl Opt. 2010 Oct 1;49(28):5399-406. doi: 10.1364/AO.49.005399.

Abstract

A hyperspectral Shack-Hartmann test bed has been developed to characterize the performance of miniature optics across a wide spectral range, a necessary first step in developing broadband achromatized all-polymer endomicroscopes. The Shack-Hartmann test bed was used to measure the chromatic focal shift (CFS) of a glass singlet lens and a glass achromatic lens, i.e., lenses representing the extrema of CFS magnitude in polymer elements to be found in endomicroscope systems. The lenses were tested from 500 to 700 nm in 5 and 10 nm steps, respectively. In both cases, we found close agreement between test results obtained from a ZEMAX model of the test bed and test lens and those obtained by experiment (maximum error of 12 μm for the singlet lens and 5 μm for the achromatic triplet lens). Future applications of the hyperspectral Shack-Hartmann test include measurements of aberrations as a function of wavelength, characterization of manufactured plastic endomicroscope elements and systems, and reverse optimization.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Aberrometry / instrumentation
  • Diagnostic Techniques, Ophthalmological / instrumentation
  • Endoscopes*
  • Equipment Design
  • Humans
  • Lenses
  • Miniaturization*
  • Optics and Photonics*
  • Polymethyl Methacrylate
  • Polystyrenes

Substances

  • Polystyrenes
  • Polymethyl Methacrylate