TEMPERATURE-DEPENDENCE OF THE DIPOLE POLARIZABILITY OF XENON (S-1(0))DUE TO DYNAMIC NONRESONANT STARK-EFFECT CAUSED BY BLACK-BODY RADIATION

The temperature dependence of the dipole polarizability alpha(omega, T ) of ground state xenon has been measured in the ranges of temperature and wavelength between 293 and 1080 K and 633 and 325 nm, respectivel y. In this temperature range an increase of Delta alpha/alpha approxim ate to 0.2%/1000 K has been detected, which increases slightly with th e frequency omega of the measuring light. The temperature dependent ch ange in alpha(omega, T) is attributed to the non-resonant Stark shift of the energy levels of xenon due to black-body radiation.