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Modulation Transfer Spectroscopy of the D1 Transition of Potassium: Theory and Experiment [dataset] Open Access

We report on a study of modulation transfer spectroscopy of the 4S1/2→4P1/2 (D1) transition of naturally abundant potassium in a room-temperature vapour cell. This transition is critical for laser cooling and optical pumping of potassium and our study is therefore motivated by the need for robust laser frequency stabilisation. Despite the absence of a closed transition, the small ground-state hyperfine splitting in potassium results in strong crossover features in the D1 modulation transfer spectrum. To emphasise this we compare the D1 and D2 spectra of potassium with those of rubidium. Further, we compare our experimental results with a detailed theoretical simulation, examining different pump-probe polarization configurations to identify the optimal signals for laser frequency stabilisation. We find good agreement between the experiment and the theory, especially for the lin∥lin polarization configuration.

Descriptions

Resource type

Dataset

Contributors

Creator: Innes, Andrew ¹
Creator: Majumder, Prosenjit ¹
Creator: Noh, Heung-Ryoul ²
Contact person: Cornish, Simon ¹

¹ Durham University, United Kingdom
² Chonnam National University, South Korea

Funder

Engineering and Physical Sciences Research Council
National Research Foundation of Korea

Research methods

Other description

Keyword

Atomic physics
Modulation transfer spectroscopy
D1 transition of potassium

Subject

Potassium--Spectra
Laser cooling

Location

Language

Cited in

doi:10.48550/arXiv.2310.11327

Identifier

ark:/32150/r25q47rn75w
doi:10.15128/r25q47rn75w

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

File Details

Depositor

A.D. Innes

Date Uploaded

30 November 2023, 03:11:33

Date Modified

11 January 2024, 10:01:04

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File format: zip (ZIP Format)

Mime type: application/zip

File size: 3354081

Last modified: 2023:11:30 10:13:15+00:00

Filename: Data-r25q47rn75w.zip

Original checksum: 02abb8430f59d8db436bb5f7faf8e66d