Ion-atom collision-induced absorption.
We examine the linear electrodynamics arising from ion-atom collision-induced absorption. For this situation, induced absorption is achieved by means of long-range electrostatic forces, and the resulting spectral lines are relatively intense, symmetrical, and narrow. As a specific application, we examine the (3)P(0)? (1)S(0) forbidden transition of Sn, which is induced to absorb by collisions with I(-). The resultant lines are of the order of 15 cm(-1) wide, and the collision-induced absorption coefficienty is 0.45%/cm per Torr of Sn and per 0.1 Torr of I(-).
Rogovin
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D
Avizonis
P
P
Filcoff
J
J