Z-scan study on the nonlinear refractive index of copper nanocluster composite silica glass

Authors
Battaglin, G Calvelli, P Cattaruzza, E Gonella, F Polloni, R Mattei, G Mazzoldi, P
Citation
G. Battaglin et al., Z-scan study on the nonlinear refractive index of copper nanocluster composite silica glass, APPL PHYS L, 78(25), 2001, pp. 3953-3955
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
78
Issue
25
Year of publication
2001
Pages
3953 - 3955
Database
ISI
SICI code
0003-6951(20010618)78:25<3953:ZSOTNR>2.0.ZU;2-S
Abstract
We used the Z-scan technique for measuring the nonlinear refractive index n (2) of a thin composite film formed by copper nanoparticles embedded in sil ica glass. By varying the number of pulses of the laser shot, we evidenced heating effects induced by the laser during measurements. We were able to e stimate the nonthermal refractive-index value, n(2) = (3.0+/-0.3) x 10(-12) cm(2)/W. (C) 2001 American Institute of Physics.