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首页> 外文会议>7th international symposium on heat transfer (ISHT7'08) >NEAR-FIELD EFFECTS OF RADIATIVE HEAT TRANSFER IN SCANNING PROBE MICROSCOPE
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NEAR-FIELD EFFECTS OF RADIATIVE HEAT TRANSFER IN SCANNING PROBE MICROSCOPE

机译：辐射换热在扫描探针显微镜中的近场效应

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摘要

Microanoscale radiation heat transfer between a pointed probe and a semi-infinite sample is studied in this paper. Based on the fluctuation-dissipation theorem and the dipolar approximation, we derive in detail the expressions of the radiative heat power between a pointed probe and a semi-infinite plane sample separated at distances of the order of microanometer. Two remarkable peaks exhibit in the power distribution due to the resonance in near-field radiative heat transfer. The numerical results indicate that the dielectric or semiconductor is in favor of forming the sharp peak power value, but the metals are difficult to excite thermally to restrain the sharp peak. Furthermore, the effects of distances, frequencies, contributions of the propagating/evanescent wave at p/s polarizations are also discussed on the radiative power. The calculation results should play a very important role in the near-field microscopy, in design of nanostructures and in high density storage processes by local heating.
机译：本文研究了尖探针与半无限样品之间的微纳尺度辐射传热。基于波动耗散定理和偶极近似，我们详细推导了尖探针与以微米/纳米数量级分开的半无限平面样本之间的辐射热能表达式。由于近场辐射热传递中的共振，功率分布中出现两个显着的峰值。数值结果表明，电介质或半导体有利于形成尖峰功率值，但金属难以热激发以抑制尖峰功率。此外，还讨论了在辐射功率上距离，频率，传播/ e逝波在p / s极化下的影响。计算结果在近场显微镜，纳米结构设计和通过局部加热的高密度存储过程中应起非常重要的作用。

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  • 来源
  • 会议地点 Beijing(CN);Beijing(CN)
  • 作者

    L.T.Gao; rnX.Q.Feng; rnK.X.Liu;

  • 作者单位

    Department of Engineering Mechanics,Tsinghua University,Beijing,100084,China;

    rnDepartment of Engineering Mechanics,Tsinghua University,Beijing,100084,China;

    rnLTCS and Department of Mechanics and Aerospace Engineering,College of Engineering,Peking University,Beijing,100871,China;

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  • 中图分类 传热学;
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