title: Attenuated internal reflection terahertz imaging.
abstract: 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 (λ/16) longitudinal resolution are demonstrated.
authors: Laboratoire d’Optique et Biosciences, École Polytechnique, CNRS, 91128 Palaiseau, France.
authors: Antoine
authors: A
authors: Wojdyla
authors: Guilhem
authors: G
authors: Gallot
mesh_terms: D000465:Algorithms; D000818:Animals; D001369:Axons / Q000473:pathology; D003952:Diagnostic Imaging / Q000295:instrumentation; D060733:Electromagnetic Radiation; D004867:Equipment Design; D007477:Ions; D007834:Lasers; D008027:Light; D015233:Models, Statistical; D055095:Optics and Photonics / Q000379:methods*; D011898:Ranidae; D012031:Refractometry; D012584:Sciatic Nerve / Q000473:pathology; D012825:Silicon / Q000737:chemistry; D055069:Terahertz Imaging / Q000379:methods*; D014867:Water
chemical_list: D007477:Ions; D014867:Water; D012825:Silicon