Two-photon absorption spectra in the excitonic region of KCl up to 8.65 eV are reported. The sources employed in the two-photon experiment are the synchrotron radiation together with a neodymium-doped yttrium aluminum garnet laser. The measured absorption spectra show structures attributed to the 2p and 3p exciton levels associated with the direct gap of KCl. These optical data give a direct measurement of the energy gap and an estimation of the exciton mass of KCl. © 1991 The American Physical Society.
Casalboni, M., Cianci, C., Francini, R., Grassano, U.m., Piacentini, M., Zema, N. (1991). Two-photon spectroscopy in KCl using synchrotron radiation. PHYSICAL REVIEW. B, CONDENSED MATTER, 44(12), 6504-6506 [10.1103/PhysRevB.44.6504].
Two-photon spectroscopy in KCl using synchrotron radiation
CASALBONI, MAURO;CIANCI, CORRADO;FRANCINI, ROBERTO;GRASSANO, UMBERTO MARIA;
1991-01-01
Abstract
Two-photon absorption spectra in the excitonic region of KCl up to 8.65 eV are reported. The sources employed in the two-photon experiment are the synchrotron radiation together with a neodymium-doped yttrium aluminum garnet laser. The measured absorption spectra show structures attributed to the 2p and 3p exciton levels associated with the direct gap of KCl. These optical data give a direct measurement of the energy gap and an estimation of the exciton mass of KCl. © 1991 The American Physical Society.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
