Observation of resonant energy transfer in Au:CdS nanocomposite

被引：47

作者：

Ma, GH

He, J

Rajiv, K

Tang, SH

Yang, Y

Nogami, M

机构：

[1] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

[2] Nagoya Inst Technol, Dept Mat Sci & Engn, Showa Ku, Nagoya, Aichi 4668555, Japan

来源：

APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 23期

关键词：

D O I：

10.1063/1.1760220

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Au:CdS nanocomposite film was investigated using femtosecond pump-probe measurement at 800 nm. Time dependence of transmittance shows a two-photon absorption followed by a saturable absorption and recovery process, which clearly demonstrates that resonant energy transfer between CdS and Au nanocomposite systems occur with excitation at 800 nm. In addition, enhancement of the two-photon absorption coefficient in Au:CdS nanocomposite with a factor of more than 6 was observed compared to that of bulk CdS. (C) 2004 American Institute of Physics.

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页码：4684 / 4686

页数：3

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