利用等离子体谐波方法从富勒烯产生高阶谐波。

Higher-order harmonic generation from fullerene by means of the plasma harmonic method.

作者信息

Ganeev R A, Bom L B Elouga, Abdul-Hadi J, Wong M C H, Brichta J P, Bhardwaj V R, Ozaki T

机构信息

Institut National de la Recherche Scientifique, Energie, Matériaux et Télécommunications, 1650 Lionel-Boulet, Varennes, Québec J3X 1S2, Canada.

出版信息

Phys Rev Lett. 2009 Jan 9;102(1):013903. doi: 10.1103/PhysRevLett.102.013903. Epub 2009 Jan 5.

DOI:10.1103/PhysRevLett.102.013903

PMID:19257194

Abstract

We demonstrate, for the first time, high-order harmonic generation from C60 by an intense femtosecond Ti:sapphire laser. Laser-produced plasmas from C60-rich epoxy and C60 films were used as the nonlinear media. Harmonics up to the 19th order were observed. The harmonic yield from fullerene-rich plasma is about 25 times larger compared with those produced from a bulk carbon target. Structural studies of plasma debris confirm the presence and integrity of fullerenes within the plasma plume, indicating fullerenes as the source of high-order harmonics.

摘要

我们首次展示了用强飞秒钛宝石激光从C60产生高次谐波。来自富含C60的环氧树脂和C60薄膜的激光产生的等离子体被用作非线性介质。观测到了高达19阶的谐波。与从块状碳靶产生的谐波相比，富勒烯等离子体产生的谐波产率大约高25倍。等离子体碎片的结构研究证实了等离子体羽流中富勒烯的存在及其完整性，表明富勒烯是高次谐波的来源。