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椭圆偏振强激光场中库仑散射对原子单电离的影响
  • ISSN号：0253-2395
  • 期刊名称：《山西大学学报：自然科学版》
  • 时间：0
  • 分类：O413.3[理学—理论物理;理学—物理]
  • 作者机构：[1]中国工程物理研究院北京研究生部,北京100088, [2]北京应用物理与计算数学研究所,北京100088
  • 相关基金：国家重点基础研究发展计划（973计划）（2011CB921503）;国家自然科学基金（11075020;91021021）
作者： 黄凯云[1], 傅立斌[2]
关键词： 椭圆偏振光, 原子电离, 再散射, 半经典模型, elliptically polarized laser , atom ionization , scattering, semiclassical model
中文摘要：

文章采用隧穿电离半经典系综模型，研究了椭圆偏振强激光场中库仑散射对原子电离的影响。结果发现，库仑散射按能量可以分为低能散射和高能散射两种。低能散射对电子电离角分布不对称性有加强作用，原子电离能越小，这种加强作用越大，而高能散射对原子电离角分布不对称性影响很小。但是，高能散射造成了椭圆偏振光辐射下电子能谱中的平台结构，而低能散射时此平台结构的形成没有作用。另外，高能散射电子的动量分布与电子的初始隧穿位置密切相关。本论文的研究进一步揭示了电子在椭圆偏振场的再散射过程，这对于碰撞物理学发

英文摘要：

The effect of scattering is studied in an intense elliptically polarized laser field by using a semi- classical model. The results indicated that the Coulomb scattering can be divided into two parts according to energy. Low-energy scattering can enhance the asymmetrical structure of electron angular distribution while the high-energy scattering plays little role for that. The smaller the atom ionization potential is, the stronger the enhancement is. High-energy scattering is responsible for the appearance of oscillating plateau structure in the ionization spectrum. In addition,the momentum distribution of high-energy scattering e tron has a close relationship with the tunneling position. The study uncovers the scattering process of e tron in an elliptically polarized field which is significant for the development of colliding physics and designation of advanced instruments such as atto-second clock. ee- ec- the

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期刊信息
  • 《山西大学学报：自然科学版》
  • 北大核心期刊（2011版）
  • 主管单位:山西省教育厅
  • 主办单位:山西大学
  • 主编：杨斌盛
  • 地址：太原市坞城路92号
  • 邮编：030006
  • 邮箱：xbbjb@sxu.edu.cn
  • 电话：0351-7010455
  • 国际标准刊号：ISSN：0253-2395
  • 国内统一刊号：ISSN：14-1105/N
  • 邮发代号:22-42
  • 获奖情况:
  • 边疆七年获山西省一级期刊荣誉（1993-1999）
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘（网络版）,英国动物学记录,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）
  • 被引量:5651