Study of the lowest electronic states of Xe-2, XeKr, and XeAr molecules by the method of multiphoton resonance ionization
2008 (English)In: Optics and Spectroscopy, ISSN 0030-400X, Vol. 104, no 5, 674-685 p.Article in journal (Refereed) Published
The spectra of Xe-2, XeKr, and XeAr molecules in the range 66 500-68 800 cm(-1) are obtained by the methods of (2 + n) and (3 + n) (n = 1, 2, 3) resonance multiphoton ionization during the registration of molecular and atomic ions. The combining of two-and three-photon resonance excitations of Xe-2 molecules makes it possible to obtain the spectra caused by transitions from the ground state X0(g)(+) to the excited states of Xe*6s[3/2](1,2)degrees(XeS0)-S-1 molecules both of the even (0(g)(+), 1(g) ) and of the odd (B0(u)(+), B'1(u) , 2(u) ) symmetries. The data on the Omega = 2(u) state of the Xe-2 molecule with the dissociation limit Xe*6s[3/2](2)degrees + (XeS0)-S-1 and on the Omega = 1 state of the XeAr molecule with the dissociation limit Xe*6s[3/2](1)degrees (ArS0)-S-1 are obtained for the first time. The potential curve of the excited 2(u) state of the Xe*6s[3/2](2)degrees (XeS0)-S-1 molecule is repulsive and intersects the potential curve of the B0(u) + state of the Xe*6s[3/2](1)degrees (XeS0)-S-1 molecule. In the case of the three-photon excitation, it is observed that all the bands in the spectra of XeKr and XeAr molecules are broadened and are shifted, which indicates that, in an intense light field, the influence of the dynamic Stark effect is significant.
Place, publisher, year, edition, pages
2008. Vol. 104, no 5, 674-685 p.
IdentifiersURN: urn:nbn:se:uu:diva-110177DOI: 10.1134/S0030400X08050068ISI: 000256181900006OAI: oai:DiVA.org:uu-110177DiVA: diva2:275506