Refraction losses in terahertz computed tomography

Emmanuel Abraham (1) , Ayesha Younus (1) , Cédric Aguerre (2) , Pascal Desbarats (2) , Patrick Mounaix (1)

1 CPMOH - Centre de physique moléculaire optique et hertzienne
2 LaBRI - Laboratoire Bordelais de Recherche en Informatique

Terahertz pulsed imaging has been used to perform computed tomography of three-dimensional objects inducing high refraction losses. We were able to obtain cross-sectional images of the targets by using a computed tomographic analysis of the terahertz signal based on a multi-peak averaging procedure. Some examples are presented of objects with complex shape such as a Teflon cylinder and a dried chicken bone.

Mots clés: Terahertz; Imaging; Computed tomography; Sinogram; Inverse Radon transform

Domaines: Optique [physics.optics]; Imagerie médicale

Emmanuel Abraham, Ayesha Younus, Cédric Aguerre, Pascal Desbarats, Patrick Mounaix. Refraction losses in terahertz computed tomography. Optics Communications, 2010, 283 (10), pp.2050-2055. ⟨hal-00488165⟩