Characterization of two-photon processes by photoacoustic spectroscopy

Authors
Cantelar, E Di Paolo, RE Tocho, JO Cusso, F
Citation
E. Cantelar et al., Characterization of two-photon processes by photoacoustic spectroscopy, ANAL SCI, 17, 2001, pp. S16-S18
Citations number
14
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
ANALYTICAL SCIENCES
ISSN journal
09106340 → ACNP
Volume
17
Year of publication
2001
Pages
S16 - S18
Database
ISI
SICI code
0910-6340(2001)17:<S16:COTPBP>2.0.ZU;2-R
Abstract
In the present work, it is demonstrated that photoacoustic spectroscopy can be used to characterize two-photon transfer processes in LiNbO3: Er/Yb. Th e photoacoustic response of the material, compared to the luminescence spec trum, can be used to determine the macroscopic coefficient which describes the two photon up-conversion dynamics. The value obtained (C-26 = 1.0 10(-1 5) cm(3) s(-1)) agrees with theoretical estimations from Judd-Ofelt calcula tions.