Hyperspectral Shack-Hartmann test.
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.
Birch
Gabriel C
GC
College of Optical Sciences, University of Arizona, 1630 East University Boulevard, Tucson, Arizona 85721, USA. gcb@email.arizona.edu
Descour
Michael R
MR
Tkaczyk
Tomasz S
TS
D057128:Aberrometry / Q000295:instrumentation; D003941:Diagnostic Techniques, Ophthalmological / Q000295:instrumentation; D019723:Endoscopes; D004867:Equipment Design; D006801:Humans; D007909:Lenses; D008904:Miniaturization; D055095:Optics and Photonics; D019904:Polymethyl Methacrylate; D011137:Polystyrenes
D011137:Polystyrenes; D019904:Polymethyl Methacrylate