自然科学版
陕西师范大学学报(自然科学版)
物理学
多通道电离过程中光电子角分布的干涉分析
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刘娟,樊荣,程建军,仇旭,任立庆,马瑞琼,李永放
(陕西师范大学 物理学与信息技术学院, 陕西 西安 710062)
刘娟,女,硕士研究生,研究方向为量子光学.
摘要:
基于光电子成像光谱技术原理,研究了双光子共振三光子电离方法获得的光电子成像图谱.着重分析了多通道电离过程中光电子的干涉作用对成像光谱的影响.结果表明,多通道电离过程中产生的光电子角分布与激发态的能态特点有关.
关键词:
双光子共振; 三光子电离; 电离速率; 光电子角分布
收稿日期:
2008-09-10
中图分类号:
O562.3
文献标识码:
A
文章编号:
1672-4291(2009)02-0029-04
基金项目:
陕西省自然科学基金资助项目(2007A04)
Doi:
Analysis of the interference pattern of the photoelectronic angular distribution with multi-path ionization
LIU Juan, FAN Rong, CHENG Jian-jun, QIU Xu, REN Li-qing, MA Rui-qiong, LI Yong-fang*
(College of physics and Information Technology, Shaanxi Normal University, Xi′an 710062, Shaanxi, China)
Abstract:
Based on the principle of the photoelectron imaging spectrometry, the photoelectron image is investigated by using two-photon resonance and three-photo ionization . The energy and angular distribution of the photoelectrons are described simultaneously via the interference pattern with multi-passage ionization. The analysis of the ionization patterns show that the angular distributions of the photoelectrons with multi-passage ionization are associated compactly with the characters of the atomic levels of the excitation states.
KeyWords:
two-photon resonance; three-photo ionization; ionization rate; photoelectron angular distribution