Pump-probe lifetime measurements on singlet ungerade states in molecular nitrogen

J. P. Sprengers; A. Johansson; A. L'Huillier; C. G. Wahlström; B. R. Lewis; W. Ubachs

doi:10.1016/j.cplett.2004.03.116

Pump-probe lifetime measurements on singlet ungerade states in molecular nitrogen

J. P. Sprengers^*, A. Johansson, A. L'Huillier, C. G. Wahlström, B. R. Lewis, W. Ubachs

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

Excited-state lifetimes for a number of vibronic states of ¹Π_u symmetry in molecular nitrogen have been determined experimentally in a laser-based pump-probe scheme using a coherent and tunable extreme ultraviolet source based on harmonic generation. States investigated in ¹⁴N₂ were b¹Π_u(v=6-9), of valence character, and c₃¹Π_u(v=1) and o ₃¹Π_u(v=1), of Rydberg character. In the case of b¹Π_u(v=7) and c₃¹Π _u(v=1), rotationally dependent predissociation was observed. States studied in ¹⁵N₂ were b¹Π_u(v=5) and c₃¹Π_u(v=1); in addition, lifetimes of the c^′₄¹Σ_u ⁺(v=0,1) and b^′1Σ_u ⁺(v=1) states were determined. The lifetimes show a dependence on the vibrational quantum number and isotope.

Original language	English
Pages (from-to)	348-351
Number of pages	4
Journal	Chemical Physics Letters
Volume	389
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2004.03.116
Publication status	Published - 11 May 2004

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title = "Pump-probe lifetime measurements on singlet ungerade states in molecular nitrogen",

abstract = "Excited-state lifetimes for a number of vibronic states of 1Πu symmetry in molecular nitrogen have been determined experimentally in a laser-based pump-probe scheme using a coherent and tunable extreme ultraviolet source based on harmonic generation. States investigated in 14N2 were b1Πu(v=6-9), of valence character, and c31Πu(v=1) and o 31Πu(v=1), of Rydberg character. In the case of b1Πu(v=7) and c31Π u(v=1), rotationally dependent predissociation was observed. States studied in 15N2 were b1Πu(v=5) and c31Πu(v=1); in addition, lifetimes of the c′41Σu +(v=0,1) and b′1Σu +(v=1) states were determined. The lifetimes show a dependence on the vibrational quantum number and isotope.",

author = "Sprengers, {J. P.} and A. Johansson and A. L'Huillier and Wahlstr{\"o}m, {C. G.} and Lewis, {B. R.} and W. Ubachs",

year = "2004",

month = may,

day = "11",

doi = "10.1016/j.cplett.2004.03.116",

language = "English",

volume = "389",

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journal = "Chemical Physics Letters",

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T1 - Pump-probe lifetime measurements on singlet ungerade states in molecular nitrogen

AU - Sprengers, J. P.

AU - Johansson, A.

AU - L'Huillier, A.

AU - Wahlström, C. G.

AU - Lewis, B. R.

AU - Ubachs, W.

PY - 2004/5/11

Y1 - 2004/5/11

N2 - Excited-state lifetimes for a number of vibronic states of 1Πu symmetry in molecular nitrogen have been determined experimentally in a laser-based pump-probe scheme using a coherent and tunable extreme ultraviolet source based on harmonic generation. States investigated in 14N2 were b1Πu(v=6-9), of valence character, and c31Πu(v=1) and o 31Πu(v=1), of Rydberg character. In the case of b1Πu(v=7) and c31Π u(v=1), rotationally dependent predissociation was observed. States studied in 15N2 were b1Πu(v=5) and c31Πu(v=1); in addition, lifetimes of the c′41Σu +(v=0,1) and b′1Σu +(v=1) states were determined. The lifetimes show a dependence on the vibrational quantum number and isotope.

AB - Excited-state lifetimes for a number of vibronic states of 1Πu symmetry in molecular nitrogen have been determined experimentally in a laser-based pump-probe scheme using a coherent and tunable extreme ultraviolet source based on harmonic generation. States investigated in 14N2 were b1Πu(v=6-9), of valence character, and c31Πu(v=1) and o 31Πu(v=1), of Rydberg character. In the case of b1Πu(v=7) and c31Π u(v=1), rotationally dependent predissociation was observed. States studied in 15N2 were b1Πu(v=5) and c31Πu(v=1); in addition, lifetimes of the c′41Σu +(v=0,1) and b′1Σu +(v=1) states were determined. The lifetimes show a dependence on the vibrational quantum number and isotope.

UR - http://www.scopus.com/inward/record.url?scp=2342637032&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2004.03.116

DO - 10.1016/j.cplett.2004.03.116

M3 - Article

SN - 0009-2614

VL - 389

SP - 348

EP - 351

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4-6

ER -

Pump-probe lifetime measurements on singlet ungerade states in molecular nitrogen

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