Journal
APPLIED PHYSICS LETTERS
Volume 108, Issue 9, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4943088
Keywords
-
Categories
Funding
- Engineering and Physical Sciences Research Council (EPSRC) Grant COTS [EP/J017671/1]
- Royal Society [UF130493]
- Royal Society Wolfson Research Merit Award scheme
- EPSRC [EP/J002356/1]
- EPSRC [EP/J017671/1, EP/J002356/1] Funding Source: UKRI
- Royal Society [UF130493] Funding Source: Royal Society
- Engineering and Physical Sciences Research Council [EP/J002356/1, EP/J017671/1] Funding Source: researchfish
Ask authors/readers for more resources
We report two-dimensional apertureless near-field terahertz (THz) imaging using a quantum cascade laser (QCL) source and a scattering probe. A near-field enhancement of the scattered field amplitude is observed for small tip-sample separations, allowing image resolutions of similar to 1 mu m (similar to lambda/100) and similar to 7 mu m to be achieved along orthogonal directions on the sample surface. This represents the highest resolution demonstrated to date with a THz QCL. By employing a detection scheme based on self-mixing interferometry, our approach offers experimental simplicity by removing the need for an external detector and also provides sensitivity to the phase of the reinjected field. (C) 2016 Author(s).
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available