量子点阵列衍射光栅衍射特性的表征

Characterization of the diffraction properties of quantum-dot-array diffraction grating.

作者信息

Wang Chuanke, Kuang Longyu, Wang Zhebin, Liu Shenye, Ding Yongkun, Cao Leifeng, Foerster Eckhart, Wang Deqiang, Xie Changqing, Ye Tianchun

机构信息

National Key Laboratory of Laser Fusion, Research Center of Laser Fusion, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang, Sichuan 621900, People's Republic of China.

出版信息

Rev Sci Instrum. 2007 May;78(5):053503. doi: 10.1063/1.2737775.

DOI:10.1063/1.2737775

PMID:17552816

Abstract

A new dispersive element named as quantum-dot-array diffraction grating [L. F. Cao, China patent No. 200410081499 (August 10, 2004)] for visible light has been developed and characterized experimentally. A large number of quantum dots distributed on a substrate as sinusoidal function can be used to diffract x rays without higher-order diffraction. The experimental patterns show that the higher-order diffractions which inevitably exist in the spectrum recorded using traditional diffraction gratings can be eliminated effectively by this newly designed element. It indicates that quantum-dot-array diffraction grating could be an attractive alternative of presently used diffraction grating in soft x-ray spectroscopy application to get rid of the higher-order diffraction distortions.

摘要

一种名为量子点阵列衍射光栅的新型色散元件[曹良富，中国专利号200410081499（2004年8月10日）]已被开发出来并进行了实验表征。大量以正弦函数分布在衬底上的量子点可用于对X射线进行衍射而不会产生高阶衍射。实验图案表明，使用这种新设计的元件可以有效消除在使用传统衍射光栅记录的光谱中不可避免存在的高阶衍射。这表明在软X射线光谱应用中，量子点阵列衍射光栅可能是目前使用的衍射光栅的一种有吸引力的替代品，以消除高阶衍射畸变。