Nanofiber frequency doublers

被引：58

作者：

Brewer, J.

Schiek, M.

Luetzen, A.

Al-Shamery, K.

Rubahn, H. -G. ^{[1
]}

机构：

[1] Univ So Denmark, Dept Chem & Phys, DK-5230 Odense M, Denmark

[2] Univ So Denmark, MEMPHYS, Ctr Biomembrane Phys, DK-5230 Odense M, Denmark

[3] Carl von Ossietzky Univ Oldenburg, Inst Pure & Appl Chem, D-26129 Oldenburg, Germany

[4] Univ Bonn, Kekule Inst, D-53121 Bonn, Germany

[5] Univ So Denmark, Mads Clausen Inst, DK-6400 Sonderborg, Denmark

来源：

NANO LETTERS | 2006年 / 6卷 / 12期

关键词：

D O I：

10.1021/nl0613196

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanoscaled, needle-shaped frequency doublers have been generated via self-assembled surface growth from functionalized quaterphenylene molecules with a designed large hyperpolarizability. The nanofiber frequency doublers exhibit very weak fluorescence centered around 430 nm but emit a strong, resonance-enhanced second-harmonic signal when excited with infrared 80 fs laser pulses. The frequency doublers are employed to correlate second-harmonic response and morphology via two-dimensional true second-harmonic images of individual nanoaggregates obtained with the help of a femtosecond laser scanning microscope.

引用

页码：2656 / 2659

页数：4