Tabletop single-shot extreme ultraviolet Fourier transform holography of an extended object

Opt Express. 2013 Apr 22;21(8):9959-66. doi: 10.1364/OE.21.009959.

Abstract

We demonstrate single and multi-shot Fourier transform holography with the use of a tabletop extreme ultraviolet laser. The reference wave was produced by a Fresnel zone plate with a central opening that allowed the incident beam to illuminate the sample directly. The high reference wave intensity allows for larger objects to be imaged compared to mask-based lensless Fourier transform holography techniques. We obtain a spatial resolution of 169 nm from a single laser pulse and a resolution of 128 nm from an accumulation of 20 laser pulses for an object ~11x11μm(2) in size. This experiment utilized a tabletop extreme ultraviolet laser that produces a highly coherent ~1.2 ns laser pulse at 46.9 nm wavelength.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Equipment Design
  • Equipment Failure Analysis
  • Fourier Analysis
  • Holography / instrumentation*
  • Imaging, Three-Dimensional / instrumentation*
  • Lasers*
  • Refractometry / instrumentation*
  • Ultraviolet Rays