aqora

Energy transfer and energy pooling from Ba[6s5d(3D1,2,3)) generated following pulsed dye-laser excitation at λ = 553.5 nm and monitored by time-resolved atomic emission from Ba[6s5d(1D2)], Ba[6s6p(3P1)] and Ba[6s6p(1P1)] part I

S. Antrobus, D. Husain, Jie Hong Lei

Journal of Photochemistry and Photobiology A ChemistryFeb 1, 19974 citations

Atomic fluorescence induced by monochromatic excitation

HERBERT WALTHER

Springer eBooksApr 6, 200815 citations

Pair-absorption-pumped barium laser

R. W. Falcone, G. Zdasiuk

This is the first reported demonstration of the use of pair-absorption transitions for optically pumping lasers. In a mixture of barium and thallium metal vapors, single-photon absorption of 3867-A laser light caused simultaneous excitation of colliding ground-state atoms to the Ba(6s6p 1P1(o)) and Tl(6p 2P(3/2)(o)) excited states. Excited-state densities of about 10(14) cm(-3) were created, and subsequent laser emission on the Ba(6s6p 1PI(o)) - Ba(6s5d 1D2) atomic transition at 1.5 microm was observed.This is the first reported demonstration of the use of pair-absorption transitions for optically pumping lasers. In a mixture of barium and thallium metal vapors, single-photon absorption of 3867-A laser light caused simultaneous excitation of colliding ground-state atoms to the Ba(6s6p 1P1(o)) and Tl(6p 2P(3/2)(o)) excited states. Excited-state densities of about 10(14) cm(-3) were created, and subsequent laser emission on the Ba(6s6p 1PI(o)) - Ba(6s5d 1D2) atomic transition at 1.5 microm was observed.

Optics LettersApr 1, 19809 citations

Atomic Fluorescence with Monochromatic Excitation

HERBERT WALTHER

Springer eBooksJan 1, 19780 citations

Experimental Study of the Fluorescence Spectrum Emitted by Two-Level Atoms under Strong Bichromatic Excitation

Yifu Zhu, A. Lezama, Qilin Wu +1 more

Springer eBooksJan 1, 19892 citations

Observation of pair absorption and self-broadening in Ba vapor

Kiyoshi Ueda, Hikaru Sotome, Yamato Sato

Reduced absorption coefficients γBaBa were measured for the far-wing absorption of the self-broadened Ba6s2 1S0–5d6p 1P1 line, Ba(6s2 1S0) +Ba(6s2 1S0)+ℏω → Ba*(5d6p 1P1)+Ba(6s21 S0)and the pair absorption Ba(6s2 1S0)+Ba(6s2 1 S0) +ℏω→Ba*(6s6p 1P1 +Ba*(6s5d 1D2). The self-broadening shows the red-shaded asymmetric profile: γBaBa on the red wing is proportional to Δν−3/2, where Δν is the detuning from the line center. The pair absorption shows a broad asymmetric peak having a blue tail and a blue satellite. The estimated γBaBa, which is based on the quasistatic line-broadening theory and the long-range dipole–dipole interaction between the relevant atomic excited levels, shows reasonable agreement for the red wing of the self-absorption whereas it gives larger values by a factor of 3 for the blue tail of the main peak for the pair absorption.Reduced absorption coefficients γBaBa were measured for the far-wing absorption of the self-broadened Ba6s2 1S0–5d6p 1P1 line, Ba(6s2 1S0) +Ba(6s2 1S0)+ℏω → Ba*(5d6p 1P1)+Ba(6s21 S0)and the pair absorption Ba(6s2 1S0)+Ba(6s2 1 S0) +ℏω→Ba*(6s6p 1P1 +Ba*(6s5d 1D2). The self-broadening shows the red-shaded asymmetric profile: γBaBa on the red wing is proportional to Δν−3/2, where Δν is the detuning from the line center. The pair absorption shows a broad asymmetric peak having a blue tail and a blue satellite. The estimated γBaBa, which is based on the quasistatic line-broadening theory and the long-range dipole–dipole interaction between the relevant atomic excited levels, shows reasonable agreement for the red wing of the self-absorption whereas it gives larger values by a factor of 3 for the blue tail of the main peak for the pair absorption.

The Journal of Chemical PhysicsFeb 1, 19915 citations

Atomic fluorescence under monochromatic excitation: A level crossing experiment on the 6s6p 1P1 level of Ba I

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Atomic fluorescence under monochromatic excitation: A level crossing experiment on the 6s6p 1P1 level of Ba I

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