(2+1) laser-induced fluorescence of spin-polarized hydrogen atoms.

Autor: Bougas, Lykourgos, Sofikitis, Dimitris, Everest, Michael A., Alexander, Andrew J., Rakitzis, T. Peter
Předmět:
Zdroj: Journal of Chemical Physics; 11/7/2010, Vol. 133 Issue 17, p174308, 5p
Abstrakt: We report the measurement of the spin polarization of hydrogen (SPH) atoms by (2+1) laser-induced fluorescence, produced via the photodissociation of thermal HBr molecules with circularly polarized 193 nm light. This scheme, which involves two-photon laser excitation at 205 nm and fluorescence at 656 nm, offers an experimentally simpler polarization-detection method than the previously reported vacuum ultraviolet detection scheme, allowing the detection of SPH atoms to be performed more straightforwardly, from the photodissociation of a wide range of molecules and from a variety of collision experiments. [ABSTRACT FROM AUTHOR]
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