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.
Two-photon spectroscopy in KCl using synchrotron radiation / M., Casalboni; C., Cianci; R., Francini; U. M., Grassano; Piacentini, Mario; N., Zema. - In: PHYSICAL REVIEW. B, CONDENSED MATTER. - ISSN 0163-1829. - STAMPA. - 44:12(1991), pp. 6504-6506. [10.1103/physrevb.44.6504]
Two-photon spectroscopy in KCl using synchrotron radiation
PIACENTINI, Mario;
1991
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.
