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

100%

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

Acta Physica Polonica A

1993

vol. 84

issue 2

229-246

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.

The C^1Σ^+ State of KLi Studied by Polarisation Labelling Spectroscopy Technique

88%

Grochola A., Kowalczyk P., Jastrzębski W., Crozet P., Ross A.

Acta Physica Polonica A

2002

vol. 102

issue 6

729-738

The polarisation labelling spectroscopy method is applied to study the C^1Σ^+← X^1 Σ^+ band system of the KLi molecule. Rotationally resolved polarisation spectra are observed in the spectral range of 17150-20350 cm^{-1}. A set of Dunham coefficients describes the C^1Σ^+ state to 95% of its potential well depth, and the potential curve is constructed by the Rydberg-Klein-Rees procedure. The molecular parameters deduced from this work are compared with theoretical calculations.

Studies of the Hydrodynamic Properties of Bose-Einstein Condensate of ^{87}Rb Atoms in a Magnetic Trap

64%

Bylicki F., Zawada M., Gawlik W., Noga A., Zachorowski J., Jastrzębski W., Szczepkowski J., Witkowski M.

Acta Physica Polonica A

2008

vol. 113

issue 2

691-705

We report details of the apparatus and the experimental procedure leading to production of the Bose-Einstein condensate of ^{87}Rb atoms. Basic hydrodynamic properties of the condensate, like quadrupole oscillations and free fall expansion, are investigated. They provide also characteristics of the magnetic trap crucial for interpretation of future experiments.

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3 Acta Physica Polonica A

1 2008

1 2002

1 1993

3 Jastrzębski W.

1 Bieniak B.

1 Bylicki F.

1 Crozet P.

1 Gawlik W.

1 Grochola A.

1 Głódź M.

1 Kowalczyk P.

1 Noga A.

1 Ross A.

1 Szczepkowski J.

1 Szonert J.

1 Witkowski M.

1 Zachorowski J.

1 Zawada M.

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

The C^1Σ^+ State of KLi Studied by Polarisation Labelling Spectroscopy Technique

Studies of the Hydrodynamic Properties of Bose-Einstein Condensate of ^{87}Rb Atoms in a Magnetic Trap