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Practical guide to THz imaging using thermal atomic vapour [dataset] Open Access

This tutorial aims to provide details on the underlying principles and methodologies of atom-based terahertz imaging techniques. Terahertz imaging is a growing field of research which can provide complementary information to techniques using other regions of the electromagnetic spectrum. Unlike infrared, visible and ultraviolet radiation, terahertz passes through many everyday materials, such as plastics, cloth and card. Compared with images formed using lower frequencies, terahertz images have superior spatial resolution due to the shorter wavelength, while compared to x-rays and gamma rays, terahertz radiation is non-ionising and safe to use. The tutorial begins with the basic principles of terahertz to optical conversion in alkali atoms before discussing how to construct a model to predict the fluorescent spectra of the atoms, on which the imaging method depends. We discuss the practical aspects of constructing an imaging system, including the subsystem specifications. We then review the typical characteristics of the imaging system including spatial resolution, sensitivity andbandwidth. We conclude with a brief discussion of some potential applications.

Descriptions

Resource type

Dataset

Contributors

Creator: Downes, Lucy ¹
Contact person: Downes, Lucy ¹
Data collector: Downes, Lucy ¹
Contact person: Weatherill, Kevin ¹
Data curator: Weatherill, Kevin ¹

¹ Durham University, UK

Funder

Engineering and Physical Sciences Research Council
Horizon 2020

Research methods

Other description

Chiefly contains TIFF images and Python code used to produce figures.

Keyword

Terahertz imaging

Subject

Physics
Optics
Terahertz technology

Location

Language

Cited in

doi:10.1088/1367-2630/acb80c

Identifier

ark:/32150/r22b88qc22x
doi:10.15128/r22b88qc22x

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

File Details

Depositor

L.A. Downes

Date Uploaded

27 September 2022, 11:09:08

Date Modified

6 March 2023, 11:03:02

Audit Status

Audits have not yet been run on this file.

Characterization

File format: zip (ZIP Format)

Mime type: application/zip

File size: 779996442

Last modified: 2022:09:27 12:47:26+01:00

Filename: Practical_Guide_to_THz_Imaging_Using_Atomic_Vapour[Dataset].zip

Original checksum: 755b76d4c66abd846e6279d85752c4e0