Search results

1

Spectral Study of Caesium Dimer Excited with 476.5, 472.7, 465.8 and 457.9 nm Argon Ion Laser Lines

100%

Szonert J., Bieniak B.

Acta Physica Polonica A

|

1991

|

vol. 79

|

issue 6

789-804

EN

The results of a study of Cs_{2} fluorescence excited by different blue lines of the Ar^{+} laser are reported. Special attention was paid to the analysis of the narrow fluorescence band at 522 nm. Approximate assignments of the fluorescence transitions were obtained. The origin of the observed fluorescence is discussed and a rough reconstruction of a fragment of the E'(3)^{1}Π_{u} upper-state potential curve is presented and found to be nearly parallel to the corresponding portion of the ground-state X^{1}Σ^{+}_{g} potential curve.

2

Lifetime and Collisional Depopulation Cross Section for the 14^{2}D_{3/2} State of Rb

81%

Bieniak B., Głódź M., Grzegorzewski P., Szonert J.

Acta Physica Polonica A

|

1994

|

vol. 85

|

issue 5

813-818

EN

The lifetime τ and the cross section σ for depopulation induced by collisions with ground-state Rb atoms were measured for the 14^{2}D_{3/2} state of Rb. The experiment was performed in the gas-cell conditions in a range of Rb vapour temperatures in the vicinity of 340 K. The lifetime value τ = 1970(130) ns, agrees with the theoretical prediction with allowance for the influence of blackbody radiation as well as of the effects due to core polarizability and spin-orbit interaction. The measured cross section σ = 6.5(3.1) × 10^{-12} cm^{2} is close to the geometrical cross section. This agrees with similar observations made by other authors for the case of the lower n^{2}D states of Rb.

3

Spectral and Time-Resolved Studies of Green Cs_{2} Fluorescence

81%

Bieniak B., Głódź M., Jastrzębski W., Szonert J.

Acta Physica Polonica A

|

1993

|

vol. 84

|

issue 2

229-246

EN

The origin and dynamic properties of the green fluorescence of Cs_{2} excited by laser lines in the 457-488 nm range are studied. Emphasis is placed on the analysis of the 501-527 nrn range. The identified fluorescence line progressions are attributed to the E'(3)^{1}П_{u} → X^{1}∑^{+}_{g} transition. An extension of the attractive branch of the E'(3)^{1}П_{u} potential towards longer inter-nuclear distances is reconstructed by the semi-classical method. A narrow feature at 522 nm is found to be connected with a minimum of the difference potentiał. The lifetime values are measured. The multicomponent fluorescence decays are interpreted as evidence of perturbations of the E'(3)^{1}П_{u} state by a number of bound and repulsive states of dicherent symmetry. The predissociation rates are estimated.

Refine search results

3 Acta Physica Polonica A

1 1994

1 1993

1 1991

3 Bieniak B.

3 Szonert J.

2 Głódź M.

1 Grzegorzewski P.

1 Jastrzębski W.

Spectral Study of Caesium Dimer Excited with 476.5, 472.7, 465.8 and 457.9 nm Argon Ion Laser Lines

Lifetime and Collisional Depopulation Cross Section for the 14^{2}D_{3/2} State of Rb

Spectral and Time-Resolved Studies of Green Cs_{2} Fluorescence