Abstract

The effect of a strong light field is essentially to shift the atomic levels and to broaden the resonances. Moreover, the quiver energy of an ejected electron increases and may become much larger than the photon energy. The observed behavior of the ion yield and the electron energy spectrum is sometimes paradoxial. We discuss the example of hydrogen at 0.53 [cf9]m[cf341]m and show how the quantum mechanical prediction agrees with phenomenological interpretations.

© 1988 Optical Society of America