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Narrowing of the Absorption Line of Light Alkali Metal Atoms in an Atmosphere of Heavy Inert Gases at Growing Radiation Intensity. / Parkhomenko, A. I.; Shalagin, A. M.

In: Optics and Spectroscopy, Vol. 127, No. 5, 01.11.2019, p. 783-791.

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

Harvard

Parkhomenko, AI & Shalagin, AM 2019, 'Narrowing of the Absorption Line of Light Alkali Metal Atoms in an Atmosphere of Heavy Inert Gases at Growing Radiation Intensity', Optics and Spectroscopy, vol. 127, no. 5, pp. 783-791. https://doi.org/10.1134/S0030400X19110213

APA

Parkhomenko, A. I., & Shalagin, A. M. (2019). Narrowing of the Absorption Line of Light Alkali Metal Atoms in an Atmosphere of Heavy Inert Gases at Growing Radiation Intensity. Optics and Spectroscopy, 127(5), 783-791. https://doi.org/10.1134/S0030400X19110213

Vancouver

Parkhomenko AI, Shalagin AM. Narrowing of the Absorption Line of Light Alkali Metal Atoms in an Atmosphere of Heavy Inert Gases at Growing Radiation Intensity. Optics and Spectroscopy. 2019 Nov 1;127(5):783-791. doi: 10.1134/S0030400X19110213

Author

Parkhomenko, A. I. ; Shalagin, A. M. / Narrowing of the Absorption Line of Light Alkali Metal Atoms in an Atmosphere of Heavy Inert Gases at Growing Radiation Intensity. In: Optics and Spectroscopy. 2019 ; Vol. 127, No. 5. pp. 783-791.

BibTeX

@article{d730fc34a59a4cdfa5ff71747c9568b7,
title = "Narrowing of the Absorption Line of Light Alkali Metal Atoms in an Atmosphere of Heavy Inert Gases at Growing Radiation Intensity",
abstract = "The effect of narrowing of the absorption line of light alkali metal 7Li and 23Na atoms present in an atmosphere of heavy inert gas (xenon) with an increase in the external radiation intensity has been investigated. For 7Li atoms at temperature T = 300 K and buffer gas (Xe) pressure PXe=0.002 Torr, the linewidth at half maximum decreases by a factor of 1.20 with an increase in the radiation intensity from 1 µW/cm2 to 2.5 mW/cm2. For 23Na atoms at T = 600 K and $${{p}_{{{\text{Xe}}}}} = 0.01$$ Torr, the linewidth at half maximum decreases by a factor of 1.29 with an increase in the radiation intensity from 1 µW/cm2 to 6 mW/cm2. The effect of field narrowing of the absorption line is due to the following factors. First, the collisional relaxation of the velocities of light resonance particles in an atmosphere of heavy buffer particles is divided into two stages with significantly different durations: relaxation in the velocity direction (fast stage) and relaxation in the velocity magnitude (slow stage). Second, there are no collisional transitions between hyperfine components of the ground state.",
keywords = "absorption line, buffer gas, collision, lithium, sodium",
author = "Parkhomenko, {A. I.} and Shalagin, {A. M.}",
year = "2019",
month = nov,
day = "1",
doi = "10.1134/S0030400X19110213",
language = "English",
volume = "127",
pages = "783--791",
journal = "Optics and Spectroscopy (English translation of Optika i Spektroskopiya)",
issn = "0030-400X",
publisher = "Maik Nauka Publishing / Springer SBM",
number = "5",

}

RIS

TY - JOUR

T1 - Narrowing of the Absorption Line of Light Alkali Metal Atoms in an Atmosphere of Heavy Inert Gases at Growing Radiation Intensity

AU - Parkhomenko, A. I.

AU - Shalagin, A. M.

PY - 2019/11/1

Y1 - 2019/11/1

N2 - The effect of narrowing of the absorption line of light alkali metal 7Li and 23Na atoms present in an atmosphere of heavy inert gas (xenon) with an increase in the external radiation intensity has been investigated. For 7Li atoms at temperature T = 300 K and buffer gas (Xe) pressure PXe=0.002 Torr, the linewidth at half maximum decreases by a factor of 1.20 with an increase in the radiation intensity from 1 µW/cm2 to 2.5 mW/cm2. For 23Na atoms at T = 600 K and $${{p}_{{{\text{Xe}}}}} = 0.01$$ Torr, the linewidth at half maximum decreases by a factor of 1.29 with an increase in the radiation intensity from 1 µW/cm2 to 6 mW/cm2. The effect of field narrowing of the absorption line is due to the following factors. First, the collisional relaxation of the velocities of light resonance particles in an atmosphere of heavy buffer particles is divided into two stages with significantly different durations: relaxation in the velocity direction (fast stage) and relaxation in the velocity magnitude (slow stage). Second, there are no collisional transitions between hyperfine components of the ground state.

AB - The effect of narrowing of the absorption line of light alkali metal 7Li and 23Na atoms present in an atmosphere of heavy inert gas (xenon) with an increase in the external radiation intensity has been investigated. For 7Li atoms at temperature T = 300 K and buffer gas (Xe) pressure PXe=0.002 Torr, the linewidth at half maximum decreases by a factor of 1.20 with an increase in the radiation intensity from 1 µW/cm2 to 2.5 mW/cm2. For 23Na atoms at T = 600 K and $${{p}_{{{\text{Xe}}}}} = 0.01$$ Torr, the linewidth at half maximum decreases by a factor of 1.29 with an increase in the radiation intensity from 1 µW/cm2 to 6 mW/cm2. The effect of field narrowing of the absorption line is due to the following factors. First, the collisional relaxation of the velocities of light resonance particles in an atmosphere of heavy buffer particles is divided into two stages with significantly different durations: relaxation in the velocity direction (fast stage) and relaxation in the velocity magnitude (slow stage). Second, there are no collisional transitions between hyperfine components of the ground state.

KW - absorption line

KW - buffer gas

KW - collision

KW - lithium

KW - sodium

UR - http://www.scopus.com/inward/record.url?scp=85077042722&partnerID=8YFLogxK

U2 - 10.1134/S0030400X19110213

DO - 10.1134/S0030400X19110213

M3 - Article

AN - SCOPUS:85077042722

VL - 127

SP - 783

EP - 791

JO - Optics and Spectroscopy (English translation of Optika i Spektroskopiya)

JF - Optics and Spectroscopy (English translation of Optika i Spektroskopiya)

SN - 0030-400X

IS - 5

ER -

ID: 22997002