A Study of Chirality in Gold Nanostructures with Second Harmonic Generation

被引：3
|
作者：
Valev, V. K. [1 ]
Silhanek, A. V. [2 ]
Gillijns, W. [2 ]
Moshchalkov, V. V. [2 ]
Verbiest, T. [1 ]
机构：
[1] Katholieke Univ Leuven, Mol Elect & Photon Grp, INPAC, B-3001 Louvain, Belgium
[2] Inst Katholieke Univ Leuven, Nanoscale Superconduct & Magnetism Pulsed Fields, INPAC, Louvain, Belgium
来源：
ACTA PHYSICA POLONICA A | 2009年 / 116卷 / 04期
关键词：
D O I：
10.12693/APhysPolA.116.498
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present the second harmonic generation - circular dichroism response from C-shaped gold nanostructures for P-polarized incoming light. By eliminating the contributions of anisotropy to the signal, an absolute measure of the second harmonic generation - circular dichroism is presented. The system of planar nanostructures is an excellent model for studying the correlation between optical properties and chiral morphology at the nanoscale. Samples with both enantiomorphs of the chiral pattern were prepared and, demonstrating the unambiguous presence of chirality, the second harmonic generation - circular dichroism response from two such samples was fitted simultaneously with a single set of fitting parameters.
引用
收藏
页码：498 / 500
页数：3
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