6533b870fe1ef96bd12d07c7
RESEARCH PRODUCT
Reconfigurable Shack-Hartmann sensor without moving elements.
Salvador BaráEnrique TajahuerceManuel Martínez-corralRaúl Martínez-cuencaJesús LancisJorge AresVicente DuránJusto ArinesVicent Climentsubject
PhysicsMicrolensWavefrontLiquid-crystal displaySpatial light modulatorbusiness.industryDynamic rangeAstrophysics::Instrumentation and Methods for AstrophysicsPhysics::OpticsReconfigurabilityOptical powerAtomic and Molecular Physics and Opticslaw.inventionOpticslawImage sensorbusinessdescription
We demonstrate wavefront sensing with variable measurement sensitivity and dynamic range by means of a programmable microlens array implemented onto an off-the-shelf twisted nematic liquid crystal display operating as a phase-only spatial light modulator. Electronic control of the optical power of a liquid lens inserted at the aperture stop of a telecentric relay system allows sensing reconfigurability without moving components. Results of laboratory experiments show the ability of the setup to detect both smooth and highly aberrated wavefronts with adequate sensitivity.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-04-22 | Optics letters |