Photoinduced current in a low-density gas
Atutov S. N. , Ermolaev I. M. , Shalagin A. M.
A new photovoltaic effect is predicted: the appearance of an electric current in a low-density gas as this gas interacts resonantly with electromagnetic radiation. Corresponding experiments reveal a current when sodium vapor is illuminated with the beam from a dye laser. This photoinduced current might be developed into a new method of intra-Doppler spectroscopy.