Cavity Ring Down Measurement of the (1, 0) B 2Σu+ - X 2Σg+ Absorption Band of the N2+ Cation |
| J. Fulara, L. Łapiński, O. Morawski and J. Prochorow Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland |
| Received: March 11, 1998; revised version April 27, 1998 |
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| The ultraviolet (1, 0) B 2Σu+ - X 2Σg+ transition in the N2+ cation was measured with the absorption cavity ring down technique. The N2+ cations were produced in a stationary DC discharge in nitrogen under reduced ( ≈ 0.5 Tr) pressure. The weak band due to the (4, 0) A 2Πu - X 2Σg+ transition in the red part of the spectrum was also recorded. Several of the observed transitions correspond to absorptions from the vibrationally excited (ν'=1) states of N2+ and to absorptions from the neutral N2 molecules in the triplet state. |
| DOI: 10.12693/APhysPolA.93.723 PACS numbers: 33.20.Lg, 39.30.+w |