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Terahertz electrometry via infrared spectroscopy of atomic vapor [dataset] Open Access

In recent years, the characterisation of radiation falling within the so-called ‘terahertz (THz) gap’ has become an ever more prominent issue due to the increasing use of THz systems in applications such as nondestructive testing, security screening, telecommunications and medical diagnostics. THz detection technologies have advanced rapidly, yet traceable calibration of THz radiation remains challenging. In this paper, we demonstrate a system of electrometry in which a THz signal can be characterized using laser spectroscopy of highly excited (Rydberg) atomic states. We report on proof-of-principle measure- ments that reveal a minimum detectable THz electric field amplitude of 1.07±0.06 V/m at 1.06 THz (3 ms detection), corresponding to a THz power at the atomic cell of approximately 3.4 nW. Due to the relative simplicity and cryogen-free nature of this system, it has the potential to provide a route to a SI traceable ‘atomic candle’ for THz calibration across the terahertz frequency range, and provide an alternative to calorimetric methods.

Descriptions

Resource type

Dataset

Contributors

Creator: Chen, Shuying ¹
Contact person: Chen, Shuying ¹
Data collector: Chen, Shuying ¹
Data curator: Chen, Shuying ¹
Creator: Reed, Dominic J. ¹
Contact person: Reed, Dominic J. ¹
Creator: MacKellar, Andrew R. ¹
Contact person: MacKellar, Andrew R. ¹
Creator: Downes, Lucy A. ¹
Contact person: Downes, Lucy A. ¹
Creator: Almuhawish, Nourah F. A. ¹
Contact person: Almuhawish, Nourah F. A. ¹
Creator: Jamieson, Matthew J. ¹
Contact person: Jamieson, Matthew J. ¹
Creator: Adams, Charles S. ¹
Contact person: Adams, Charles S. ¹
Creator: Weatherill, Kevin J. ¹
Contact person: Weatherill, Kevin J. ¹

¹ Durham University

Funder

Engineering and Physical Sciences Research Council
EU Horizon 2020

Research methods

Atomic spectroscopy for THz radiation measurement and calibration

Other description

Keyword

Atomic spectroscopy
THz radiation measurement and calibration

Subject

Location

Language

Cited in

Identifier

ark:/32150/r24f16c287m
doi:10.15128/r24f16c287m

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

2022-03-30

File Details

Depositor

S. Chen

Date Uploaded

30 March 2022, 17:03:25

Date Modified

1 April 2022, 13:04:44

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Audits have not yet been run on this file.

Characterization

File format: zip (ZIP Format)

Mime type: application/zip

File size: 12779168

Last modified: 2022:03:31 15:58:18+01:00

Filename: ChenResearchData.zip

Original checksum: 9f0b0a0dc8d2c4da9cf11a10edc4f57f