TY - JOUR
T1 - Isotopic variation of experimental lifetimes for the lowest 1Π u states of N 2
AU - Sprengers, J. P.
AU - Ubachs, W.
AU - Baldwin, K. G.H.
PY - 2005
Y1 - 2005
N2 - Lifetimes of several 1Π u states of the three natural isotopomers of molecular nitrogen, N214, N14 N15, and N215, are determined via linewidth measurements in the frequency domain. Extreme ultraviolet (XUV) +UV two-photon ionization spectra of the b 1Π u (v=0-1,5-7) and c3 1Π u (v=0) states of N214, b 1Π u (v=0-1,5-6) and c3 1Π u (v=0) states of N14 N15, and b 1Π u (v=0-7), c3 1Π u (v=0), and o 1Π u (v=0) states of N215 are recorded at ultrahigh resolution, using a narrow band tunable XUV-laser source. Lifetimes are derived from the linewidths of single rotationally resolved spectral lines after deconvolution of the instrument function. The observed lifetimes depend on the vibrational quantum number and are found to be strongly isotope dependent.
AB - Lifetimes of several 1Π u states of the three natural isotopomers of molecular nitrogen, N214, N14 N15, and N215, are determined via linewidth measurements in the frequency domain. Extreme ultraviolet (XUV) +UV two-photon ionization spectra of the b 1Π u (v=0-1,5-7) and c3 1Π u (v=0) states of N214, b 1Π u (v=0-1,5-6) and c3 1Π u (v=0) states of N14 N15, and b 1Π u (v=0-7), c3 1Π u (v=0), and o 1Π u (v=0) states of N215 are recorded at ultrahigh resolution, using a narrow band tunable XUV-laser source. Lifetimes are derived from the linewidths of single rotationally resolved spectral lines after deconvolution of the instrument function. The observed lifetimes depend on the vibrational quantum number and are found to be strongly isotope dependent.
UR - http://www.scopus.com/inward/record.url?scp=20944444994&partnerID=8YFLogxK
U2 - 10.1063/1.1869985
DO - 10.1063/1.1869985
M3 - Article
SN - 0021-9606
VL - 122
JO - Journal of Chemical Physics
JF - Journal of Chemical Physics
IS - 14
M1 - 144301
ER -