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红宝石中的弱光非线性与超光速传播
  • ISSN号：0023-074X
  • 期刊名称：《科学通报》
  • 时间：0
  • 分类：TN015[电子电信—物理电子学] TU323.3[建筑科学—结构工程]
  • 作者机构：[1]南开大学物理科学学院光子学中心,天津300071, [2]南开大学弱光非线性光子学教育部重点实验室,天津300457, [3]南开大学天津市信息光子材料与技术重点实验室,天津300457
  • 相关基金：国际合作重点项目（编号：2005DFA10170）,国家自然科学基金（批准号：10334010,60678021,10604033,10804054）、弱光非线性光子学科学与技术创新引智基地项目（编号：B07013）、天津自然科学基金（编号：07JCYBJC16600）、天津市国际科技合作项目（编号：06YFGHHZ00500,06YFGHHZ00800）、教育部科技创新工程重大项目培育资金项目（编号：708022）、国家重点基础研究发展计划（编号：2007CB307002）和国家中长期规划重大研究计划专项（编号：2006CB921703）资助
作者： 高峰[1,2,3], 许京军[1,2,3], 张国权[1,2,3], 张文定[1,2,3]
关键词： 群速调控, 非简并二波耦合, 群速减慢, 群速加快
中文摘要：

总结了弱光作用下红宝石中存在的非线性性质及其在红宝石中群速调控应用中的贡献．可以简化成二能级系统的红宝石，在激光抽运下存在相干布居振荡效应；TEM00模的激光抽运下引起的自相位调制，又会在样品后表面引起相应的相位变化进而在远场产生夫朗和费衍射图形，这一衍射图形会随光强的时域调制而产生相应的变化；除此之外，这两种机制由于TEM00模的调制高斯光同时具备时间和空间的频率分量，不同空间频率分量之间还存在着类似于非简并二波耦合的效应．相干布居振荡、自相位调制及夫朗和费衍射以及非简并二波耦合这三种机制相互竞争，可以在红宝石中产生光群速的自加快的新结果，这种共存情况下的竞争机制可以给红宝石带来优良的弱光非线性性质．

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期刊信息
  • 《科学通报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国科学院
  • 主编：周光召
  • 地址：北京东黄城根北街16号
  • 邮编：100717
  • 邮箱：csb@scichina.org
  • 电话：010-64036120 64012686
  • 国际标准刊号：ISSN：0023-074X
  • 国内统一刊号：ISSN：11-1784/N
  • 邮发代号:80-213
  • 获奖情况:
  • 首届国家期刊奖,中国期刊方阵“双高”期刊,第三届中国出版政府奖
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  • 被引量:81792