Pulsed laser deposition of Cu:Al2O3 nanocrystal thin films with high third-order optical susceptibility
- 27 October 1997
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 71 (17) , 2445-2447
- https://doi.org/10.1063/1.120117
Abstract
3 pages, 3 figures.Nanocomposite films comprising metal Cu nanocrystals embedded in an Al2O3 matrix were deposited by alternating pulsed laser ablation from metallic Cu and ceramic Al2O3 targets. The films were grown in vacuum on glass substrates held at room temperature. The as-grown films contain 4 nm Cu nanocrystals in an amorphous Al2O3 matrix, with a total thickness of 190 nm. The films show a substantial third-order susceptibility with an electronic nonlinear refractive index of (2.93 ± 1.08) · 10–10 cm2 W – 1 and a nonlinear saturation of –(2.34 ± 0.18) · 10–5 cm W – 1.This project was\ud partially supported by CICYT (Spain) under Contract No.\ud TIC96-0467 and by the U.S. Army Research Office Grant\ud No. (DAAH04-93-G-0123).Peer revieweKeywords
This publication has 17 references indexed in Scilit:
- Large third-order optical nonlinearity in Au:SiO2 composite films near the percolation thresholdApplied Physics Letters, 1997
- In situ growth of optically active erbium doped Al2O3 thin films by pulsed laser depositionApplied Physics Letters, 1996
- Formation of copper and silver nanometer dimension clusters in silica by the sol-gel processApplied Physics Letters, 1996
- Optical nonlinearities of a high concentration of small metal particles dispersed in glass: copper and silver particlesJournal of the Optical Society of America B, 1994
- Peculiarities and application perspectives of metal-ion implants in glassesNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1994
- Gold nanoparticles ion implanted in glass with enhanced nonlinear optical propertiesJournal of Applied Physics, 1994
- Pulsed excimer laser deposition of potassium titanyl phosphate filmsApplied Physics Letters, 1994
- Annealing of ion implanted silver colloids in glassJournal of Applied Physics, 1993
- Nonlinear optical property of CdTe microcrystallites doped glasses fabricated by laser evaporation methodApplied Physics Letters, 1992
- A new method for synthesizing nanocrystalline alloysJournal of Applied Physics, 1991