Attenuated internal reflection terahertz imaging

Antoine Wojdyla (1) , Guilhem Gallot (1)

1 LOB - Laboratoire d'optique et biosciences

We present a terahertz (THz) imaging technique based on attenuated internal reflection, which is ideally suited for the analysis of liquid and biological samples. Inserted in a THz time-domain system, and using a high-resistivity low loss silicon prism to couple the THz wave into the sample, the detection scheme is based on the relative differential spectral phase of two orthogonal polarizations. Biological sample imaging as well as subwavelength (?/16) longitudinal resolution are demonstrated. Cop. 2013 Optical Society of America.

Domaines: Optique [physics.optics]; Imagerie

Antoine Wojdyla, Guilhem Gallot. Attenuated internal reflection terahertz imaging. Optics Letters, 2013, 38 (2), pp.112-114. ⟨hal-00817162⟩