New energy levels of atomic lanthanum with small total angular momentum quantum number discovered by laser spectroscopic methods in the near IR

I. K. Öztürk; Gü Başar; Gö Başar; B. Özdalgiç; D. Bingöl; F. Güzelçimen; L. Windholz; S. Kröger

doi:10.1016/j.jqsrt.2020.107100

New energy levels of atomic lanthanum with small total angular momentum quantum number discovered by laser spectroscopic methods in the near IR

I. K. Öztürk, Gü Başar, Gö Başar, B. Özdalgiç, D. Bingöl, F. Güzelçimen, L. Windholz^*, S. Kröger

^*Corresponding author for this work

Department of Physics Engineering

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Optogalvanic spectroscopy as well as laser-induced fluorescence spectroscopy were applied in order to find new energy levels of atomic lanthanum. A hollow-cathode lamp and a tuneable continuous wave titanium-sapphire laser in the wavelength range from 750 nm to 850 nm were used for the measurements. Three energy levels of even parity with small values of total angular momentum quantum number J were discovered: 38 519.18 cm⁻¹ with J=1/2, 40 392.80 cm⁻¹ with J=3/2, and 42 191.24 cm⁻¹ with J=3/2. The existence of these three levels was confirmed by laser excitations of several spectral lines as well as by spectral lines from a Fourier transform spectrum. Magnetic dipole hyperfine structure constants of the three new levels were determined from fits of the experimental spectra of the laser lines.

Original language	English
Article number	107100
Journal	Journal of Quantitative Spectroscopy and Radiative Transfer
Volume	253
DOIs	https://doi.org/10.1016/j.jqsrt.2020.107100
Publication status	Published - Sept 2020

Bibliographical note

Publisher Copyright:
© 2020 Elsevier Ltd

Funding

This work was supported by the Project no. 117F513 of the Scientific and Technological Research Council of Turkey (TUBITAK). This work was supported by the Project no. 117F513 of the Scientific and Technological Research Council of Turkey (TUBITAK). The authors are thankful to the group in Riga (Ferber R, Jarmola A and Tamanis M, Laser Centre, The University of Latvia, Riga, Latvia) for providing the FT spectrum of lanthanum.

Funders	Funder number
TUBITAK
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu
Latvijas Universitate

Keywords

Atomic structure
Energy levels
Lanthanum
Laser spectroscopy

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10.1016/j.jqsrt.2020.107100

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Öztürk, I. K., Başar, G., Başar, G., Özdalgiç, B., Bingöl, D., Güzelçimen, F., Windholz, L., & Kröger, S. (2020). New energy levels of atomic lanthanum with small total angular momentum quantum number discovered by laser spectroscopic methods in the near IR. Journal of Quantitative Spectroscopy and Radiative Transfer, 253, Article 107100. https://doi.org/10.1016/j.jqsrt.2020.107100

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title = "New energy levels of atomic lanthanum with small total angular momentum quantum number discovered by laser spectroscopic methods in the near IR",

abstract = "Optogalvanic spectroscopy as well as laser-induced fluorescence spectroscopy were applied in order to find new energy levels of atomic lanthanum. A hollow-cathode lamp and a tuneable continuous wave titanium-sapphire laser in the wavelength range from 750 nm to 850 nm were used for the measurements. Three energy levels of even parity with small values of total angular momentum quantum number J were discovered: 38 519.18 cm−1 with J=1/2, 40 392.80 cm−1 with J=3/2, and 42 191.24 cm−1 with J=3/2. The existence of these three levels was confirmed by laser excitations of several spectral lines as well as by spectral lines from a Fourier transform spectrum. Magnetic dipole hyperfine structure constants of the three new levels were determined from fits of the experimental spectra of the laser lines.",

keywords = "Atomic structure, Energy levels, Lanthanum, Laser spectroscopy",

author = "{\"O}zt{\"u}rk, {I. K.} and G{\"u} Ba{\c s}ar and G{\"o} Ba{\c s}ar and B. {\"O}zdalgi{\c c} and D. Bing{\"o}l and F. G{\"u}zel{\c c}imen and L. Windholz and S. Kr{\"o}ger",

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year = "2020",

month = sep,

doi = "10.1016/j.jqsrt.2020.107100",

language = "English",

volume = "253",

journal = "Journal of Quantitative Spectroscopy and Radiative Transfer",

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Öztürk, IK, Başar, G, Başar, G, Özdalgiç, B, Bingöl, D, Güzelçimen, F, Windholz, L & Kröger, S 2020, 'New energy levels of atomic lanthanum with small total angular momentum quantum number discovered by laser spectroscopic methods in the near IR', Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 253, 107100. https://doi.org/10.1016/j.jqsrt.2020.107100

TY - JOUR

T1 - New energy levels of atomic lanthanum with small total angular momentum quantum number discovered by laser spectroscopic methods in the near IR

AU - Öztürk, I. K.

AU - Başar, Gü

AU - Başar, Gö

AU - Özdalgiç, B.

AU - Bingöl, D.

AU - Güzelçimen, F.

AU - Windholz, L.

AU - Kröger, S.

PY - 2020/9

Y1 - 2020/9

N2 - Optogalvanic spectroscopy as well as laser-induced fluorescence spectroscopy were applied in order to find new energy levels of atomic lanthanum. A hollow-cathode lamp and a tuneable continuous wave titanium-sapphire laser in the wavelength range from 750 nm to 850 nm were used for the measurements. Three energy levels of even parity with small values of total angular momentum quantum number J were discovered: 38 519.18 cm−1 with J=1/2, 40 392.80 cm−1 with J=3/2, and 42 191.24 cm−1 with J=3/2. The existence of these three levels was confirmed by laser excitations of several spectral lines as well as by spectral lines from a Fourier transform spectrum. Magnetic dipole hyperfine structure constants of the three new levels were determined from fits of the experimental spectra of the laser lines.

AB - Optogalvanic spectroscopy as well as laser-induced fluorescence spectroscopy were applied in order to find new energy levels of atomic lanthanum. A hollow-cathode lamp and a tuneable continuous wave titanium-sapphire laser in the wavelength range from 750 nm to 850 nm were used for the measurements. Three energy levels of even parity with small values of total angular momentum quantum number J were discovered: 38 519.18 cm−1 with J=1/2, 40 392.80 cm−1 with J=3/2, and 42 191.24 cm−1 with J=3/2. The existence of these three levels was confirmed by laser excitations of several spectral lines as well as by spectral lines from a Fourier transform spectrum. Magnetic dipole hyperfine structure constants of the three new levels were determined from fits of the experimental spectra of the laser lines.

KW - Atomic structure

KW - Energy levels

KW - Lanthanum

KW - Laser spectroscopy

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VL - 253

JO - Journal of Quantitative Spectroscopy and Radiative Transfer

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M1 - 107100

ER -

New energy levels of atomic lanthanum with small total angular momentum quantum number discovered by laser spectroscopic methods in the near IR

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