Two-photon spectroscopy of core excitons in barium fluoride using synchrotron radiation and laser light.
We have conducted two-photon spectroscopy of core excitons in BaF(2). Synchrotron radiation and laser light were used for 5p core-electron excitation and Auger-free luminescence was detected as the signal. Two-photon excitation enables access to f and p orbitals that cannot be reached by one-photon excitation of electrons in p orbitals. It has been found that the spin-orbit splittings of 4f and 6p states of the Ba ion in BaF(2) are 0.7 +/- 0.1 and 1.4 +/- 0.1 eV, respectively.
Tsujibayashi
Toru
T
Department of Physics, Osaka Dental University, 8-1 Kuzuha-hanazono, Hirakata 573-1121, Japan. toru-t@cc.osaka-dent.ac.jp
Itoh
Minoru
M
Azuma
Junpei
J
Watanabe
Masayuki
M
Arimoto
Osamu
O
Nakanishi
Shunsuke
S
Itoh
Hiroshi
H
Kamada
Masao
M