Open AccessImproved sample characterization in terahertz reflection imaging and spectroscopy
Author(s) -
Sheng-Yang Huang,
Philip C. Ashworth,
Kanis Wai Chi Kan,
Yang Chen,
Vincent P. Wallace,
Yuan-Ting Zhang,
Emma PickwellMacPherson
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.003848
Subject(s) - terahertz radiation , optics , terahertz spectroscopy and technology , reflection (computer programming) , sample (material) , attenuation , characterization (materials science) , materials science , window (computing) , total internal reflection , spectroscopy , reflection coefficient , medical imaging , fresnel equations , refractive index , physics , computer science , quantum mechanics , thermodynamics , programming language , operating system , artificial intelligence
For imaging applications involving biological subjects, the strong attenuation of terahertz radiation by water means that terahertz pulsed imaging is most likely to be successfully implemented in a reflection geometry. Many terahertz reflection geometry systems have a window onto which the sample is placed - this window may introduce unwanted reflections which interfere with the reflection of interest from the sample. In this paper we derive a new approach to account for the effects of these reflections and illustrate its success with improved calculations of sample optical properties.