Optical transient resonance of copper nanoparticle composites synthesized by negative ion implantation

被引：24

作者：

Takeda, Y

Umeda, N

Gritsyna, VT

Kishimoto, N

机构：

[1] Natl Res Inst Met, Tsukuba, Ibaraki 3050003, Japan

[2] Univ Tsukuba, Tsukuba, Ibaraki 305, Japan

[3] Kharkov Natl Univ, Kharkov, Ukraine

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2001年 / 175卷

关键词：

ion implantation; Cu nanoparticle; optical property; nonlinear optics;

D O I：

10.1016/S0168-583X(00)00570-X

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Steady-state optical absorption and nonlinear transient resonance have been studied for Cu nanoparticle composites, fabricated in magnesium aluminate spinel by high-current negative ion implantation. The implantation was conducted at high ion fluxes of 60 keV up to a total dose of 3 x 10(16) ions/cm(2). Optical absorption strongly depended on dose rate, ranging from 1 to 100 muA/cm(2). The dose rate dependence of the absorption spectra around the surface plasmon resonance behaved analogously to that of a-SiO2 though the radiation-induced absorption band depended on stoichiometry of the spinel. The spectral shape of transient absorption at various dose rates is similar but the bleached plasmon band shifts is in parallel with the steady-state surface plasmon resonance. The dose rate chiefly influences dielectric properties of a spinel matrix but not that of particles. (C) 2001 Elsevier Science B,V. All rights reserved.

引用

页码：463 / 467

页数：5

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