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The Role of Pressure in Shaping the D1 Line Spectrum of Potassium Vapour [dataset] Open Access

In this study, we investigate the effect of buffer gas and temperature on the spectral line shapes of the potassium D1 transition using sealed vapor cells filled with varying amounts of neon sas a buffer gas. Employing a dual-temperature control system, we independently manipulate the cell body and stem temperatures to explore Doppler and collisional effects on the spectrum. Our results show how the spectral profile changes from Gaussian to Voigt forms due to pressure broadening and shifts caused by collisions between potassium atoms and neon. We also analyze the potassium D1 spectral lines in the hyperfine Paschen-Back regime using strong magnetic fields, demonstrating how Zeeman splitting modifies the line shape and transmission. This work provides valuable insights into collision-induced broadening and shifts, enhancing our understanding of potassium spectroscopy and its application in developing advanced magneto-optical filters for solar physics.

Descriptions

Resource type

Dataset

Contributors

Creator: Alqarni, Sharaa A. ¹
Contact person: Alqarni, Sharaa A. ¹
Data collector: Alqarni, Sharaa A. ¹
Contact person: Hughes, Ifan G. ¹
Contact person: Pizzey, Danielle ¹
Contact person: Wrathmall, Steven A. ¹

¹ Durham University, UK

Funder

Engineering and Physical Sciences Research Council
Durham University
UK Space Agency
Najran University, Najran, KSA

Research methods

Other description

Keyword

Thermal vapours
Optics
Spectroscopy
Atomic physics

Subject

Potassium vapor

Location

Language

English

Cited in

Identifier

ark:/32150/r2kw52j810w
doi:10.15128/r2kw52j810w

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

File Details

Depositor

S. Alqarni

Date Uploaded

10 December 2024, 13:12:50

Date Modified

9 April 2025, 22:04:22

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Characterization

File format: zip (ZIP Format)

Mime type: application/zip

File size: 680706

Last modified: 2025:04:09 22:44:05+01:00

Filename: The_Role_of_Buffer_ Gas_in_Shaping_the_D1_Line_Spectrum_of_Potassium_Vapour.zip

Original checksum: 4d7d7290639d4731e7ccb4d5915c70e3