Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2016 Feb 5;6:20474. doi: 10.1038/srep20474

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2016, Macmillan Publishers Limited

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

PMC Copyright notice

(a) RT, transmission THz imaging obtained while impinging the 0.29 THz radiation on a box of two tablets before (left) and after (right) injecting 3 μl of water in one of them mounted on a XY stage, with an acquisition time of 10 ms/pixel. For visible light illumination the humidity-induced tablet deterioration, with the anomalous water content cannot be seen, either by naked eye or by the CCD camera used to take the related photograph (b). The detection of THz transmitted radiation provides a visible signature on that. (c) RT, transmission THz imaging obtained while impinging the 0.29 THz radiation on a chocolate bar mounted on a XY stage, with an acquisition time of 10 ms/pixel. The residue of the aluminum external package is clearly resolved by the detectors. (d) Photograph of the chocolate bar collected from its rear side.