強レーザー場中の分子内水素分子ダイナミクス

我在上一财年所从事的研究课题如下：1)作为上一财年研究的延续，我们完成了我们在强飞秒激光脉冲中H_2He分子离子的光解离动力学的工作，并将我们的结果发表在一篇科学论文中。2)利用我们在上一财年发展的理论框架，允许高精度地变分模拟多原子分子的旋转振动/排列动力学，我们研究了H_2HE和H_2O分子的激光诱导排列动力学。3)利用Java和数学编程语言，开发了一个跨平台、界面友好的激光诱导排列取向模拟器(LAOS)软件，可用于模拟刚性转子近似下分子的光致转动动力学。据我们所知，目前还没有这样的软件，我们相信它将对参与相关研究的实验科学家有用。4)我们开始与德国比勒费尔德大学的客座教授Farhad H.M.Faisal教授合作，开发新的理论方法来有效地模拟多电子系统中的强场电离，并研究电子关联在光电离过程中的作用。我们的联合工作正在进行中。

The research topics I was engaged in during the fiscal year were the following:1) As a continuation of the research from the previous fiscal year, we finalized our work on the photodissociation dynamics of the H_2He+ molecular ion in an intense femtosecond laser pulse, and published our results in a scientific paper.2) Using the theoretical framework we developed in the last fiscal year, which allows for high accuracy, variational simulations of laser induced rovibrational/alignment dynamics of polyatomic molecules, we investigated the laser-induced alignment dynamics of the H_2He+ and H_2O molecules. We published our research results in a scientific paper.3) Using Java and Mathematica programming languages, we developed a cross-platform, user-friendly software named “Laser-induced Alignment and Orientation Simulator” (LAOS), which can be used to simulate the light-induced rotational dynamics of molecules within the rigid rotor approximation. To the best of our knowledge, such software is not yet available, and we believe it will be useful for experimental scientists involved in related research. Publication of the program in a scientific journal is in preparation.4) We started a collaboration with a visiting professor from Bielefeld University, Germany, Prof. Farhad H. M. Faisal, on developing novel theoretical approaches to efficiently simulate strong field ionization in multielectron systems and to investigate the role of electron correlation in the photoionization processes. Our joint work is in progress.