Оптика и спектроскопия

Влияние поляризации лазерного излучения на эффективность фотоионизации лютеция

А.Б. Дьячков, Aleksei A. Gorkunov, Anton V. Labozin, С.М. Миронов, Valerii A Firsov, Gleb O. Tsvetkov, В.Я. Панченко

Published Jan 1, 2022• 0 citations

Abstract

The effect of laser radiation polarization on the photoionization of lutetium is studied using three-stage scheme 5d6s2 2D3/2−5d6s6p 4Fo5/2−5d6s7s 4D3/2−(53375 cm−1)o1/2. It is shown that in a number of cases, there is a limitation of photoionization associated with the features of coherent photoexcitation.

DOI: 10.21883/os.2022.12.54083.3034-22

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AbstractThe hyperfine structure of transitions in the three-step scheme 5 d 6 s ^22 D _3/2–5 d 6 s 6 p ^4 F $$_{{5/2}}^{^\circ }$$ –5 d 6 s 7 s ^4 D _3/2– (53 375 cm^–1) $$_{{1/2}}^{^\circ }$$ of lutetium ionization is studied for ^175Lu, ^176Lu, and ^177Lu isotopes using the photoionization laser spectroscopy method. Values of the magnetic dipole ( A ) and electric quadrupole ( B ) interaction constants are determined, as well as the energies, the isotope shifts, and the radiative lifetimes for the 5 d 6 s 7 s ^4 D _3/2 and (53 375 cm^–1) $$_{{1/2}}^{^\circ }$$ levels.

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Оптика и спектроскопия

Влияние поляризации лазерного излучения на эффективность фотоионизации лютеция

А.Б. Дьячков, Aleksei A. Gorkunov, Anton V. Labozin, С.М. Миронов, Valerii A Firsov, Gleb O. Tsvetkov, В.Я. Панченко

Published Jan 1, 2022• 0 citations

Publisher

Abstract

DOI: 10.21883/os.2022.12.54083.3034-22

Related papers

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AbstractThe hyperfine structure of transitions in the three-step scheme 5 d 6 s ^22 D _3/2–5 d 6 s 6 p ^4 F $_{{5/2}}^{^\circ }$ –5 d 6 s 7 s ^4 D _3/2– (53 375 cm^–1) $_{{1/2}}^{^\circ }$ of lutetium ionization is studied for ^175Lu, ^176Lu, and ^177Lu isotopes using the photoionization laser spectroscopy method. Values of the magnetic dipole ( A ) and electric quadrupole ( B ) interaction constants are determined, as well as the energies, the isotope shifts, and the radiative lifetimes for the 5 d 6 s 7 s ^4 D _3/2 and (53 375 cm^–1) $_{{1/2}}^{^\circ }$ levels.AbstractThe hyperfine structure of transitions in the three-step scheme 5 d 6 s ^22 D _3/2–5 d 6 s 6 p ^4 F $$_{{5/2}}^{^\circ }$$ –5 d 6 s 7 s ^4 D _3/2– (53 375 cm^–1) $$_{{1/2}}^{^\circ }$$ of lutetium ionization is studied for ^175Lu, ^176Lu, and ^177Lu isotopes using the photoionization laser spectroscopy method. Values of the magnetic dipole ( A ) and electric quadrupole ( B ) interaction constants are determined, as well as the energies, the isotope shifts, and the radiative lifetimes for the 5 d 6 s 7 s ^4 D _3/2 and (53 375 cm^–1) $$_{{1/2}}^{^\circ }$$ levels.

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Оптика и спектроскопияJan 1, 20220 citations

Autler–Townes Effect of Autoionization Transition at Laser Separation of Lutetium Isotopes

Aleksei B D'yachkov, Aleksei A. Gorkunov, С. К. Ковалевич +5 more

The splitting of the transition from a discrete to an autoionization state, used in a three-step photoionization scheme of lutetium 5d6s2 2D3/2–5d6s6p ${}^{4}F_{{5/2}}^{^\circ }$ –5d6s7s 4D3/2–(53375 cm–1) $_{{1/2}}^{^\circ }$ has been studied. The splitting is proportional to the square root of the intensity, which corresponds to the Autler–Townes effect.The splitting of the transition from a discrete to an autoionization state, used in a three-step photoionization scheme of lutetium 5d6s2 2D3/2–5d6s6p $${}^{4}F_{{5/2}}^{^\circ }$$ –5d6s7s 4D3/2–(53375 cm–1) $$_{{1/2}}^{^\circ }$$ has been studied. The splitting is proportional to the square root of the intensity, which corresponds to the Autler–Townes effect.

Optics and SpectroscopyApr 1, 20240 citations

The photoionization spectrum in the second step of the three-step lutetium photoionization scheme 5d6s2 2D3/2 – 5d6s6p4

F_{{5/2}}^{{\text{o}}}

– 5d6s7s4D3/2 – (53 375 cm–1

)_{{1/2}}^{{\text{o}}}

has been measured. The effect of two-photon transitions has been studied experimentally compared to one-photon transitions.

The hyperfine structure of transitions in the three-step scheme 5d6s22D3/2–5d6s6p4F

_{{5/2}}^{^\circ }

–5d6s7s4D3/2– (53 375 cm–1)

_{{1/2}}^{^\circ }

of lutetium ionization is studied for 175Lu, 176Lu, and 177Lu isotopes using the photoionization laser spectroscopy method. Values of the magnetic dipole (A) and electric quadrupole (B) interaction constants are determined, as well as the energies, the isotope shifts, and the radiative lifetimes for the 5d6s7s4D3/2 and (53 375 cm–1)

_{{1/2}}^{^\circ }

levels.

AbstractThe hyperfine structure of transitions in the three-step scheme 5 d 6 s ^22 D _3/2–5 d 6 s 6 p ^4 F

_{{5/2}}^{^\circ }

–5 d 6 s 7 s ^4 D _3/2– (53 375 cm^–1)

_{{1/2}}^{^\circ }

of lutetium ionization is studied for ^175Lu, ^176Lu, and ^177Lu isotopes using the photoionization laser spectroscopy method. Values of the magnetic dipole ( A ) and electric quadrupole ( B ) interaction constants are determined, as well as the energies, the isotope shifts, and the radiative lifetimes for the 5 d 6 s 7 s ^4 D _3/2 and (53 375 cm^–1)

_{{1/2}}^{^\circ }

levels.

The splitting of the transition from a discrete to an autoionization state, used in a three-step photoionization scheme of lutetium 5d6s2 2D3/2–5d6s6p

{}^{4}F_{{5/2}}^{^\circ }

–5d6s7s 4D3/2–(53375 cm–1)

_{{1/2}}^{^\circ }

has been studied. The splitting is proportional to the square root of the intensity, which corresponds to the Autler–Townes effect.