Article(id=1323704980389102334, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1323704973204259532, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1149609600000, receivedDateStr=2006-06-07, revisedDate=1157212800000, revisedDateStr=2006-09-03, acceptedDate=null, acceptedDateStr=null, onlineDate=1793525460573, onlineDateStr=2026-11-01, pubDate=1180972800000, pubDateStr=2007-06-05, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793525460573, onlineIssueDateStr=2026-11-01, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793525460573, creator=13701087609, updateTime=1793525460573, updator=13701087609, issue=Issue{id=1323704973204259532, tenantId=1146029695717560320, journalId=1255847867265597444, year='2007', volume='21', issue='2', pageStart='113', pageEnd='224', issueExtLink='null', onlineDate='null', pubDate='1180972800000', pubDateStr='2007-06-05', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793525458861, creator='13701087609', updateTime=1793525458861, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=183, endPage=187, ext={EN=ArticleExt(id=1323704980565263103, articleId=1323704980389102334, tenantId=1146029695717560320, journalId=1255847867265597444, language=EN, title=Non-Fourier Energy Transport in Silicon Thin Films during Femtosecond Laser Heating, columnId=null, journalTitle=Chinese Journal of High Pressure Physics, columnName=null, runingTitle=null, highlight=null, articleAbstract=

A numerical model which is based on the hyperbolic two-step model is developed to investigate the microscopic energy transport in silicon thin films during ultra-fast laser heating. It is observed that, electrons dominate energy transport within a few picoseconds. The coupling processes between electrons and phonons are non-local due to the ballistic transport of electrons, and the coupling coefficient is found to be much more strongly dependent on electron temperature than lattice temperature. The speed of heat wave propagation is the same magnitude as that of the electron energy transport. Predictions from the numerical model agree with available experimental data during ultra-fast laser heating.

, authors=Guo-Dong LIU, Fu LUO, Gui-Bing WANG, authorsList=Guo-Dong LIU, Fu LUO, Gui-Bing WANG, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1323704980770784000, articleId=1323704980389102334, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=飞秒激光辐照下硅薄膜的非傅里叶能量输运研究, columnId=0, journalTitle=高压物理学报, columnName=, runingTitle=null, highlight=null, articleAbstract=

在双曲双步输运模型基础上建立数值模型,针对超短脉冲激光作用下硅薄膜的微观能量输运过程展开理论研究。针对电子、晶格超快温升响应过程的数值模拟结果表明,电子作为主要能量载子在几皮秒内主导了能量输运过程。电声子之间的能量耦合系数主要依赖于电子温度,而不是晶格温度。能量耦合过程由于非平衡电子的弹道式输运而呈现非局域性。热波的传播速度与电子能量传播速度有相同量级,而大于硅材料中的声子平均速度。模型预测与相关实验结果吻合。

, authors=刘国栋, 罗福, 王贵兵, authorsList=刘国栋, 罗福, 王贵兵, authorCompany=null, correspAuthors=null, authorNote=

刘国栋(1980—),男,硕士研究生,主要从事微尺度材料超快能量输运机制的研究. E-mail:

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刘国栋(1980—),男,硕士研究生,主要从事微尺度材料超快能量输运机制的研究. E-mail:

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刘国栋(1980—),男,硕士研究生,主要从事微尺度材料超快能量输运机制的研究. E-mail:

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飞秒激光辐照下硅薄膜的非傅里叶能量输运研究
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刘国栋 , 罗福 , 王贵兵
高压物理学报 | 2007,21(2): 183-187
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高压物理学报 | 2007 , 21 (2) : 183 -187
飞秒激光辐照下硅薄膜的非傅里叶能量输运研究
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刘国栋 , 罗福, 王贵兵
作者信息
  • 中国工程物理研究院流体物理研究所,四川 绵阳 621900
作者简介:

刘国栋(1980—),男,硕士研究生,主要从事微尺度材料超快能量输运机制的研究. E-mail:

Non-Fourier Energy Transport in Silicon Thin Films during Femtosecond Laser Heating
Guo-Dong LIU , Fu LUO, Gui-Bing WANG
Affiliations
  • Institute of Fluid Physics, CAEP, Mianyang 621900, China
出版时间: 2007-06-05
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在双曲双步输运模型基础上建立数值模型,针对超短脉冲激光作用下硅薄膜的微观能量输运过程展开理论研究。针对电子、晶格超快温升响应过程的数值模拟结果表明,电子作为主要能量载子在几皮秒内主导了能量输运过程。电声子之间的能量耦合系数主要依赖于电子温度,而不是晶格温度。能量耦合过程由于非平衡电子的弹道式输运而呈现非局域性。热波的传播速度与电子能量传播速度有相同量级,而大于硅材料中的声子平均速度。模型预测与相关实验结果吻合。

飞秒激光  /  非傅里叶能量输运  /  数值模拟  /  硅薄膜

A numerical model which is based on the hyperbolic two-step model is developed to investigate the microscopic energy transport in silicon thin films during ultra-fast laser heating. It is observed that, electrons dominate energy transport within a few picoseconds. The coupling processes between electrons and phonons are non-local due to the ballistic transport of electrons, and the coupling coefficient is found to be much more strongly dependent on electron temperature than lattice temperature. The speed of heat wave propagation is the same magnitude as that of the electron energy transport. Predictions from the numerical model agree with available experimental data during ultra-fast laser heating.

femtosecond laser  /  non-Fourier transport  /  numerical simulation  /  silicon thin films
刘国栋, 罗福, 王贵兵. 飞秒激光辐照下硅薄膜的非傅里叶能量输运研究. 高压物理学报, 2007 , 21 (2) : 183 -187 .
Guo-Dong LIU, Fu LUO, Gui-Bing WANG. Non-Fourier Energy Transport in Silicon Thin Films during Femtosecond Laser Heating[J]. Chinese Journal of High Pressure Physics, 2007 , 21 (2) : 183 -187 .
  • 国家863计划项目资助课题
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2007年第21卷第2期
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  • 接收时间:2006-06-07
  • 首发时间:2026-11-01
  • 出版时间:2007-06-05
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  • 收稿日期:2006-06-07
  • 修回日期:2006-09-03
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国家863计划项目资助课题
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    中国工程物理研究院流体物理研究所,四川 绵阳 621900
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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