High-speed THz spectroscopic imaging at ten kilohertz pixel rate with amplitude and phase contrast

By combining the advantages of the high-speed ASOPS technology and efficient THz generation, we have realized a high-speed laser-based spectroscopic THz imaging system with more than 10,000 pixels per second acquisition speed and an excellent signal-to-noise ratio of more than 100. Unlike THz line c...

Full description

Saved in:
Bibliographic Details
Published in:Optics express 2019-04, Vol.27 (8), p.10866-10872
Main Authors: Beck, M, Plötzing, T, Maussang, K, Palomo, J, Colombelli, R, Sagnes, I, Mangeney, J, Tignon, J, Dhillon, S S, Klatt, G, Bartels, A
Format: Article
Language:English
Subjects:
Engineering Sciences
Optics
Photonic
Physics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:By combining the advantages of the high-speed ASOPS technology and efficient THz generation, we have realized a high-speed laser-based spectroscopic THz imaging system with more than 10,000 pixels per second acquisition speed and an excellent signal-to-noise ratio of more than 100. Unlike THz line cameras or mm-wave intensity detectors, the present device allows for a much higher spatial resolution and attributes each imaging pixel with phase and amplitude information up to several THz while simultaneously maintaining a very high scanning speed unmatched by any other technique presented so far. The high-speed acquisition allows for samples to be scanned even at sample velocities of 5 m/s or higher while preserving the fundamental resolution limit of the THz radiation, which is on the order of 500 µm in the present case.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.27.010866