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Published on: July 27, 2018
Two-photon-excited fluorescence spectroscopy of atomic fluorine at 170 nm
Abstract:
We report what is to our knowledge the first two-photon-excited fluorescence spectroscopy of atomic fluorine. A doubled dye laser at 286 nm is Raman shifted in H(2) to 170 nm (sixth anti-Stokes order) to excite ground-state (2)P degrees (J) fluorine atoms to the (2)D degrees (J) level. The fluorine atoms are detected by one of two methods: observing the fluorescence decay to the (2)P(J) level or observing F(+) production through the absorption of an additional photo by the excited atoms. We have measured relative two-photon absorption cross sections to and the radiative lifetimes of the (2)D degrees (J) states.
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