我院12级本科生论文被国际光学权威杂志OE接收

我院12级科学班吕博赛同学的论文《Dynamic self-diffraction in MoS2 nanoflake solutions》被国际权威杂志Optics Express接收，即将正式发表。

该论文主要报道了激光在MoS2悬浮溶液中的动态自衍射现象，并进行了动态数据分析模拟。观测结果表明自衍射现象分为三个阶段（如附图）：第一阶段为激光透射光斑由高斯分布变成对称衍射环，主要机制猜测为激光作用占主要地位；第二阶段为衍射环在竖直方向上变为不对称，机理猜测为重力占主要地位作用；第三阶段为衍射环在水平方向上变为不对称，机理猜测为激光精细结构决定衍射环不对称性。通过自衍射三个阶段的完成时间和终态观测分析，可以证明自衍射现象的形成快慢与激光强度、溶液粘滞度和MoS2纳微碎片的浓度有关。对动态的衍射图像进行模拟，可以得出溶液中纳微碎片在激光作用下的动态分布。

吕博赛同学主要承担了课题中的测试、数据处理分析和撰写等工作，论文排名为指导导师之后的第一作者。

论文英文摘要和作者排名：

We observe dynamic self-diffraction in MoS2 supernatant solutions with laser for the first time, and conduct dynamic data simulation and analysis. Observation results indicate that self-diffraction can be divided in three stages: in the first stage, laser changes from Gauss beam to symmetric diffraction rings because of the force from laser. In the second stage, diffraction rings become asymmetric vertically because of gravity. In the third stage, diffraction rings become asymmetric horizontally, as a result of fine structure of laser. We obtain the dynamic distribution of MoS2 nanoflake in solution under the effect of laser by dynamic diffraction image simulation.（Authors：Si Xiao（导师）,Bosai Lv（吕博赛）, Liang Wu（邬亮）, Menglong Zhu（朱孟龙）,Jun He（何军）, andShaohua Tao（陶少华）*）

Optics Express杂志简介：The original all-electronic, open-access optics journal, Optics Express(OpEx) is known for its rapid time to publication and high Impact Factor. OpEx publishes peer-reviewed articles that emphasize scientific and technology innovations in all aspects of optics and photonics.2013年影响因子为3.525，属于中南大学SCI二区论文，国际权威期刊之一。