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Diffuse bands of alkali dimers : Detection of ultracold molecules (CROSBI ID 474248)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Pichler, Goran ; Ban, Ticijana ; Skenderović, Hrvoje ; Beuc, Robert Diffuse bands of alkali dimers : Detection of ultracold molecules // Book of Abstracts / The Brijuni Conference VII / Bosanac, Danko S. ; Došlić, Nađa (ur.). Zagreb: Institut Ruđer Bošković, 2000. str. 37-37-x

Podaci o odgovornosti

Pichler, Goran ; Ban, Ticijana ; Skenderović, Hrvoje ; Beuc, Robert

engleski

Diffuse bands of alkali dimers : Detection of ultracold molecules

In recent few years many efforts have been performed in order to create ultracold molecules and to detect them in their lowest stable states. In the case of alkali dimers ultracold molecules can be formed either in the lowest triplet state, a 3Su+ [1] or in the ground state, X 1Sg+ [2]. Beside Cs2 and K2 ultracold molecules, quite recently, ultracold Rb2 molecules have been detected in their lowest triplet state [3]. Detection scheme of the ultracold triplet alkali molecules is performed via two-photon ionization leading to Cs2+ or Rb2+. The first step in this ionization process involves absorption of the photons within the well-known diffuse bands of alkali dimers [4]. We have performed a new set of absorption measurements using all sapphire cell filled with potassium, rubidium and cesium at very high temperatures in order to study K2, Rb2 and Cs2 diffuse bands at 575, 600 and 710 nm in more details. Using recent ab initio potential curves calculations we shall discuss the origin of the fine structure splitting of these diffuse bands and some additional structures found at very high rubidium particle densities. __________________________________ [1] A. Fioretti, D. Comparat, A. Crubellier, O. Dulieu, F. Masnou-Seeuws, and P. Pillet, Phys.Rev.Lett. 80 (1998) 4402. ___________________________________________ [2] A. N. Nikolov, E. E. Eyler, X. T. Wang, J. Li, H. Wang, W.C. Stwalley, and P. L. Gould, Phys.Rev.Lett. 82 (1999) 703. _____________________________________________ [3] C. Gabbanini, A. Fioretti, A. Lucchesini, S. Gozzini and M. Mazzoni, Phys.Rev.Lett. 84 (2000) 2814 ___________________________________________________________ [4] G. Pichler, S. Milosevic, D. Veza and R. Beuc, J.Phys.B:At.Mol.Phys. 16 (1983) 4619.

diffuse bands; alkali dimers; ultracold molecules

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Podaci o prilogu

37-37-x.

2000.

objavljeno

Podaci o matičnoj publikaciji

Book of Abstracts / The Brijuni Conference VII

Bosanac, Danko S. ; Došlić, Nađa

Zagreb: Institut Ruđer Bošković

Podaci o skupu

The Brijuni Conference VII

poster

28.08.2000-01.09.2000

Brijuni, Hrvatska

Povezanost rada

Fizika