TY - GEN
T1 - Direct measurement of the two-photon excitation cross-section of xenon by laser absorption
AU - Drag, Cyril
AU - Marmuse, Florian
AU - Blondel, Christophe
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023/1/1
Y1 - 2023/1/1
N2 - Laser diagnostics in plasmas frequently uses the so-called TALIF technique, which consists in recording the fluorescence following the two-photon excitation of an atomic species. For oxygen density measurements, a widespread protocol is to compare the fluorescence yield to that measured in Xe vapor, the density of which can be known straightforwardly, when illuminated by the same optical system. This comparison is easily done because we can find energy levels for these two atoms, where the excitation and fluorescence wavelengths are spectrally close. However, quantitative analysis relies on knowledge of the ratio of the two two-photon cross-sections σ(2) involved [1]. We present a direct measurement of the integrated cross-section σ(2)(Xe) of xenon that therefore appeared quite desirable.
AB - Laser diagnostics in plasmas frequently uses the so-called TALIF technique, which consists in recording the fluorescence following the two-photon excitation of an atomic species. For oxygen density measurements, a widespread protocol is to compare the fluorescence yield to that measured in Xe vapor, the density of which can be known straightforwardly, when illuminated by the same optical system. This comparison is easily done because we can find energy levels for these two atoms, where the excitation and fluorescence wavelengths are spectrally close. However, quantitative analysis relies on knowledge of the ratio of the two two-photon cross-sections σ(2) involved [1]. We present a direct measurement of the integrated cross-section σ(2)(Xe) of xenon that therefore appeared quite desirable.
U2 - 10.1109/CLEO/EUROPE-EQEC57999.2023.10231411
DO - 10.1109/CLEO/EUROPE-EQEC57999.2023.10231411
M3 - Conference contribution
AN - SCOPUS:85175732762
T3 - 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023
BT - 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023
Y2 - 26 June 2023 through 30 June 2023
ER -