TY - GEN N1 - Optica Applicata, Vol. 36, 2006, nr 4, s. 469-473 N2 - Excitation spectra of sodium dimer were analysed within the range 34200–36400 cm–1. The experiment was done using polarisation labelling spectroscopy technique. In the spectral region under investigation we found several vibrational progressions belonging to a single band system having the ground state of Na2 as the lower state. The upper state was of 1Π u symmetry as indicated by the presence of Q lines in the spectrum and basing on theoretical calculations it was identified as the 61Π u (3s + 4f) state. The Dunham coefficients and potential curve characterising this state were deduced from the observed spectra. L1 - http://www.dbc.wroc.pl/Content/63716/optappl_3604p469.pdf M3 - artykuł L2 - http://www.dbc.wroc.pl/Content/63716 PY - 2006 KW - optyka KW - Na2 molecule KW - laser spectroscopy KW - electronic states KW - potential energy curves C1 - Wszystkie prawa zastrzeżone (Copyright) A1 - Grochola, Anna A1 - Kubkowska, Monika K. A1 - Jastrzębski, Włodzimierz A1 - Kowalczyk, Paweł A2 - Gaj, Miron. Redakcja A2 - Wilk, Ireneusz. Redakcja PB - Oficyna Wydawnicza Politechniki Wrocławskiej C6 - Dla wszystkich w zakresie dozwolonego użytku LA - eng CY - Wrocław T1 - The 61Πu state of Na2 molecule UR - http://www.dbc.wroc.pl/dlibra/publication/edition/63716 ER -