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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 1,
  • Issue 1,
  • pp. 53-55
  • (2003)

Terahertz wave tomographic imaging with a Fresnel lens

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Abstract

We demonstrate three-dimensional tomographic imaging using a Fresnel lens with broadband terahertz pulses. Objects at various locations along the beam propagation path are uniquely imaged on the same imaging plane using a Fresnel lens with different frequencies of the imaging beam. This procedure allows the reconstruction of an object's tomographic contrast image by assembling the frequency-dependent images.

© 2005 Chinese Optics Letters

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