Doppler-free two-photon spectroscopy on the S1←S0 origin band of 
1,4-diazabicyclo[2,2,2]octane (DABCO)

Berden, Giel; Groot, Tim; van der Veldt, Tony; Meijer, Gerard

doi:10.1016/S0009-2614(96)01432-7

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Doppler-free two-photon spectroscopy on the S₁←S₀ origin band of 1,4-diazabicyclo[2,2,2]octane (DABCO)

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Citation

Berden, G., Groot, T., van der Veldt, T., & Meijer, G. (1997). Doppler-free two-photon spectroscopy on the S₁←S₀ origin band of 1,4-diazabicyclo[2,2,2]octane (DABCO). Chemical Physics Letters, 265(1-2), 204-208. doi:10.1016/S0009-2614(96)01432-7.

Cite as: https://hdl.handle.net/21.11116/0000-000B-65FC-8

Abstract

The rotationally resolved two-photon excitation spectrum of the Q-branch (ΔJ = 0) of the O₀⁰ band in the S₁←S₀ transition of DABCO was recorded in a cell at room temperature. Two counterpropagating narrow bandwidth laser beams were used for Doppler-free excitation. The observed linewidth was 20 MHz. Analysis of the spectra provides the change upon electronic excitation of the rotational constants.