Fine-structure branching in the near-threshold photodissociation of NaK( $X^{1}$ $Σ^{+}$ –B ${}^{1}Π$ )

Publisher Website

1 November 1990

journal article
research article
Published by American Physical Society (APS) in Physical Review A

Vol. 42 (9) , 5352-5356
https://doi.org/10.1103/physreva.42.5352

Abstract

We have measured the

X^{1}

Σ^{+}

–B

{}^{1}Π

bound-free molecular photodissociation profile of NaK under molecular-beam conditions. The dissociation results in excited

K^{*}

(4

{}^{2}

P). We have measured the

D_{1}

/

D_{2}

fine-structure branching ratio; this ratio is a strong function of wavelength ranging from near zero to

D_{1}

/

D_{2}

≃25% as the laser is tuned through the bound-free absorption profile.

Keywords

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