scholarly journals Laser Spectroscopy of Neutral Atoms in Superfluid Helium: New Environment For Spectroscopy and Chemistry

1995 ◽  
Vol 15 (2-4) ◽  
pp. 221-228 ◽  
Author(s):  
Qin Hui ◽  
John L. Persson ◽  
Jaap H. M. Beijersbergen ◽  
Michio Takami
Keyword(s):  
Laser Ablation ◽  
Laser Spectroscopy ◽  
Superfluid Helium ◽  
Emission Spectra ◽  
Repulsive Force ◽  
Dye Lasers ◽  
Neutral Atoms ◽  
Solid Samples ◽  
Broad Absorption ◽  
Absorption And Emission

The optical spectra of neutral atoms are studied in superfluid helium (HeII). Neutral atoms are dispersed into HeII by laser ablation of solid samples immersed in HeII. Absorption and emission spectra of dispersed atoms are studied with pulsed dye lasers. Ytterbium is found to be a typical bubble atom which resides in a bubble-like cavity formed by a strong repulsive force against the surrounding He atoms. Resonance quenching of LIF by accidental overlap of the resonant induced emission and broad absorption lines is observed.

scholarly journals Aromaticity and photophysics of tetrasila- and tetragerma-annelated tetrathienylenes as new representatives of the hetero[8]circulene family

2019 ◽  
Vol 21 (18) ◽  
pp. 9246-9254 ◽  
Author(s):  
G. V. Baryshnikov ◽  
R. R. Valiev ◽  
V. N. Cherepanov ◽  
N. N. Karaush-Karmazin ◽  
V. A. Minaeva ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Emission Spectra ◽  
Absorption And Emission ◽  
Absorption And Emission Spectra ◽  
Photophysical Behavior

The electronic structure, absorption and emission spectra, aromaticity and photophysical behavior of the recently synthesized tetrasilatetrathia[8]circulene and tetragermatetrathia[8]circulene compounds have been studied computationally.

Fine structure of the absorption and emission spectra of NI2+-ions in BALiF3

1995 ◽  
Vol 135 (1-4) ◽  
pp. 15-18 ◽  
Author(s):  
E. Martins ◽  
S. L. Baldochi ◽  
S. P. Morato ◽  
N. D. Vieira ◽  
A. Luci ◽  
...  
Keyword(s):  
Fine Structure ◽  
Emission Spectra ◽  
Absorption And Emission ◽  
Absorption And Emission Spectra

Laser spectroscopy in superfluid helium

1993 ◽  
Author(s):  
T. Yabuzaki ◽  
A. Fujisaki ◽  
K. Sano ◽  
T. Kinoshita ◽  
Y. Takahashi
Keyword(s):  
Laser Spectroscopy ◽  
Superfluid Helium
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