Improving Visibility of Diffraction Pattern with Pseudo-Thermal Light

  • Received Date: December 12, 2007
  • Published Date: March 31, 2008
  • We report an experimental observation of Poisson's spot with pseudo-thermal light. The experimental results show that the diffraction pattern disappears in the intensity distribution behind the opaque disc but emerges through both auto-correlation and cross-correlation intensity measurements. The auto-correlation scheme can take care of both better visibility and higher resolution of the diffraction pattern under the condition that the thermal light source has a larger spectral bandwidth.
  • Article Text

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