A theoretical study on laser cooling of silicon monofluoride

	A theoretical study on laser cooling of silicon monofluoride
	Xia, Wensha 1,2; Fu, Mingkai 1,2; Ma, Haitao 1; Bian, Wensheng 1,2
刊名	CHEMICAL PHYSICS
	2017-03-01
卷号	485 页码:29-34
关键词	Sif Laser Cooling Ab Initio
英文摘要	The feasibility of direct laser cooling of silicon monofluoride (SiF) is investigated and assessed using the internally contracted multireference configuration interaction method with the Davidson correction and entirely uncontracted aug-cc-pwCV5Z basis sets. As for the A(2)epsilon+(v' = 0) X-2 pi transition, the computed radiative lifetime is 0.69 us and the vibrational branching ratio R,,, is highly diagonally distributed with the R-oo being 0.994, which are desirable for rapid and efficient laser cooling. In addition, good agreement is achieved between our computed spectroscopic properties and the available experimental data for the X-2 pi and A(2)epsilon(+) states of SiF. We propose a kind of laser cooling scheme, in which the wavelengths are located in the visible region. Both our calculated Doppler and recoil temperatures are of the order of mu K, and the calculated minimum distance necessary to bring the velocity of a SiF beam to that suitable for trapping is 13 cm, indicating that the SiF molecule can be cooled to the ultracold regime through the proposed scheme. (C) 2017 Elsevier B.V. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/38213]
专题	化学研究所_分子反应动力学实验室
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xia, Wensha,Fu, Mingkai,Ma, Haitao,et al. A theoretical study on laser cooling of silicon monofluoride[J]. CHEMICAL PHYSICS,2017,485:29-34.
APA	Xia, Wensha,Fu, Mingkai,Ma, Haitao,&Bian, Wensheng.(2017).A theoretical study on laser cooling of silicon monofluoride.CHEMICAL PHYSICS,485,29-34.
MLA	Xia, Wensha,et al."A theoretical study on laser cooling of silicon monofluoride".CHEMICAL PHYSICS 485(2017):29-34.