Two-color pump-probe experiments on silicon inverse opals -: art. no. 091111

被引：22

作者：

Becker, C

Linden, S

von Freymann, G

Wegener, M

Tétreault, N

Vekris, E

Kitaev, V

Ozin, GA

机构：

[1] Forschungszentrum Karlsruhe, Inst Nanotechnol, D-76021 Karlsruhe, Germany

[2] Univ Karlsruhe, Inst Angew Phys, D-76131 Karlsruhe, Germany

[3] Univ Toronto, Dept Chem, Mat Chem Res Grp, Toronto, ON M5S 3H6, Canada

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 09期

关键词：

D O I：

10.1063/1.2035873

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present time-resolved pump-probe experiments in a transmission geometry using off-resonant excitation on very high-quality silicon inverse opals. We show that the nonlinear optical response can drastically be modified by tempering of the sample. The as-grown samples are dominated by an absorptive response with recovery times as short as one picosecond. For the tempered samples, both the relaxation and the scattering times increase, leading to a prominent dispersive response. Based on simple calculations using the Drude model, we estimate corresponding refractive index changes as large as Delta n=-0.5+i0.07. (c) 2005 American Institute of Physics.

引用

页数：3