The predissociation of highly excited states in acetylene by time-resolved photoelectron spectroscopy
(2003) In Journal of Chemical Physics 119(7). p.3763-3773- Abstract
- We study the dynamics of highly excited states in acetylene initiated by an ultrashort vacuum ultraviolet laser pulse. Electronic states lying in the 4s-3d Rydberg region are excited with one femtosecond pulse, and the dynamic development of the states is monitored by a second short pulse which ionizes the system. We show that even for femtosecond pulses where the bandwidth of the exciting pulse covers several electronic states, it is possible to extract short decay lifetimes through time-resolved photoelectron spectroscopy by using a frequency-modulated (chirped) excitation pulse. We report decay lifetimes for the F 4(0)(2) and E 4-5(0)(2) states in acetylene, and for the E 4(0)(2) and E 5(0)(2) states in d-acetylene. The time evolution... (More)
- We study the dynamics of highly excited states in acetylene initiated by an ultrashort vacuum ultraviolet laser pulse. Electronic states lying in the 4s-3d Rydberg region are excited with one femtosecond pulse, and the dynamic development of the states is monitored by a second short pulse which ionizes the system. We show that even for femtosecond pulses where the bandwidth of the exciting pulse covers several electronic states, it is possible to extract short decay lifetimes through time-resolved photoelectron spectroscopy by using a frequency-modulated (chirped) excitation pulse. We report decay lifetimes for the F 4(0)(2) and E 4-5(0)(2) states in acetylene, and for the E 4(0)(2) and E 5(0)(2) states in d-acetylene. The time evolution measured in the electron spectra is compared to decay spectra measured using ion yield and the differences in these results are discussed. (C) 2003 American Institute of Physics. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/305007
- author
- organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Chemical Physics
- volume
- 119
- issue
- 7
- pages
- 3763 - 3773
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- wos:000184474100023
- scopus:0041376968
- ISSN
- 0021-9606
- DOI
- 10.1063/1.1589479
- language
- English
- LU publication?
- yes
- id
- 26ca1fbe-df07-4e13-af5d-f0d9607292bd (old id 305007)
- date added to LUP
- 2016-04-01 12:27:55
- date last changed
- 2024-01-08 21:23:24
@article{26ca1fbe-df07-4e13-af5d-f0d9607292bd, abstract = {{We study the dynamics of highly excited states in acetylene initiated by an ultrashort vacuum ultraviolet laser pulse. Electronic states lying in the 4s-3d Rydberg region are excited with one femtosecond pulse, and the dynamic development of the states is monitored by a second short pulse which ionizes the system. We show that even for femtosecond pulses where the bandwidth of the exciting pulse covers several electronic states, it is possible to extract short decay lifetimes through time-resolved photoelectron spectroscopy by using a frequency-modulated (chirped) excitation pulse. We report decay lifetimes for the F 4(0)(2) and E 4-5(0)(2) states in acetylene, and for the E 4(0)(2) and E 5(0)(2) states in d-acetylene. The time evolution measured in the electron spectra is compared to decay spectra measured using ion yield and the differences in these results are discussed. (C) 2003 American Institute of Physics.}}, author = {{Zamith, S and Blanchet, V and Girard, B and Andersson, J and Ristinmaa Sörensen, Stacey and Hjelte, I and Bjorneholm, O and Gauyacq, D and Norin, Johan and Mauritsson, Johan and L'Huillier, Anne}}, issn = {{0021-9606}}, language = {{eng}}, number = {{7}}, pages = {{3763--3773}}, publisher = {{American Institute of Physics (AIP)}}, series = {{Journal of Chemical Physics}}, title = {{The predissociation of highly excited states in acetylene by time-resolved photoelectron spectroscopy}}, url = {{https://lup.lub.lu.se/search/files/2934587/2371288.pdf}}, doi = {{10.1063/1.1589479}}, volume = {{119}}, year = {{2003}}, }