Spherical aberration correction suitable for a wavefront controller

Opt Express. 2009 Aug 3;17(16):14367-73. doi: 10.1364/oe.17.014367.

Abstract

We propose a simple method to correct a large amount of spherical aberration caused by a refractive index mismatch. The method is based on inverse ray tracing and can generate correction phase patterns whose peak-to-valley values are minimized. We also demonstrated spherical aberration correction in a transparent acrylic block using a liquid-crystal-on-silicon spatial light modulator (LCOS-SLM). A distorted focal volume without correction was substantially improved with correction. This method is useful in cases where a large phase modulation is needed, such as when employing a high-NA lens or focusing a beam deep inside a sample.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Artifacts*
  • Computer Simulation
  • Computer-Aided Design
  • Equipment Design
  • Equipment Failure Analysis
  • Feedback
  • Image Enhancement / instrumentation*
  • Lenses*
  • Light
  • Models, Theoretical
  • Refractometry / instrumentation*
  • Scattering, Radiation