EXTENSION OF TWO-PHOTON SPECTROSCOPY TO THE VACUUM ULTRAVIOLET USING SYNCHROTRON RADIATION

Abstract

Synchrotron radiation has been used for the first time in two-photon spectroscopy. The experimental apparatus, built at the ADONE storage ring in Frascati, and using a Q-switched Nd:YAG laser as a powerful source is presented. Space and time superposition of the beams is discussed extensively. Testing of the apparatus has been performed by measuring the two-photon absorption spectra of KCl and NaCl