Laser spectroscopy measurement of radiative lifetimes of highly excited thulium Rydberg states

Journal Article · Fri Dec 01 04:00:00 EST 1989 · Journal of the Optical Society of America, Part B: Optical Physics; (USA)

DOI:https://doi.org/10.1364/JOSAB.6.002295· OSTI ID:7243891

Vidolova-Angelova, E P; Angelov, D A; Krustev, T B; Mincheva, S ^[1]

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1. Institute of Solid State Physics, Bulgarian Academy of Sciences, Blvd. Lenin 72, 1784 Sofia, Bulgaria (BG)

The radiative lifetime {tau}{sub rad} of the highly excited 4{ital f}{sup 13}{sub 7/2}6{ital s}{sub 1/2}(4){ital np}{sub 3/2}(1{sub 1/2}) ({ital n}=21--31) Rydberg Tm states have been measured with the method of multistep laser excitation and electric fiedl ionization. The lifetime values have been obtained with an accuracy of better than 15%. The influence of blackbody radiation on the states with {ital n}{ge}27 has been observed. The experimental results are in good agreement with our previously calculated values obtained by relativistic perturbation theory with a zero-order model approximation. It has been shown that the {pi}{sub {ital rad}}=0.0022.({ital n}*){sup 2.46} ({mu}sec). This property may be attributed to the strongly expressed nonhydrogenlike behavior of the investigated states, which is caused by the essentially non-Coulombic core potential acting on the Rydberg electron.

• OSTI ID: 7243891
• Journal Information: Journal of the Optical Society of America, Part B: Optical Physics; (USA), Journal Name: Journal of the Optical Society of America, Part B: Optical Physics; (USA) Vol. 6:12; ISSN JOBPD; ISSN 0740-3224
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ATOMIC BEAMS
BEAMS
ELECTRIC FIELDS
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
IONIZATION
LASER SPECTROSCOPY
LIFETIME
METALS
MULTI-PHOTON PROCESSES
PHOTOIONIZATION
RADIATIVE DECAY
RARE EARTHS
RYDBERG STATES
SPECTROSCOPY
THULIUM