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Light-to-heat conversion and heating of single nanoparticles, their assemblies, and the surrounding medium under laser pulses

机译：在激光脉冲下的单纳米粒子，它们的组件和周围介质的光热转换和加热

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摘要

This review analyses the results of theoretical and experimental investigations of the thermal processes of the light-to-heat conversion and heating of single nanoparticles, their assemblies, and the surrounding medium under laser pulsed radiation, heat exchange and thermal conduction in a wide temporal interval from femtoseconds to CW action. Homogeneous metallic spherical nanoparticles are considered. The interaction of ultrashort laser pulses with an electron-lattice system in metallic nanoparticles is discussed and the novel results for electron-phonon coupling are presented. The conversion of radiation energy absorbed by nanoparticles into their thermal energy, nanoparticle heating and heat transfer to ambient medium are investigated. The temporal and spatial-temporal dependencies of nanoparticles and medium temperatures are reviewed, taking into account the dependencies of the thermo-optical parameters of the nanoparticles and surrounding medium on the temperature. The heat localization (thermal confinement) within the nanoparticle and nanoparticle assemblies during the determined time intervals, practically without heat exchange and with an ambience, is established and discussed. The redistribution of thermal energy between nanoparticles or nanoparticle assemblies and the surrounding medium during radiation heating and following cooling is considered. This review presents a platform for the description of the thermal processes of laser-nanoparticle interactions and their applications in photo-thermal nanotechnology, nanoenergy, laser processing of nanoparticles, laser nanomedicine, nonlinear optical diagnostics, and photochemistry.
机译：该综述分析了在激光脉冲辐射，热交换和宽时段间隔下的热量转化和单纳米颗粒，它们的组件和周围介质的热过程的理论和实验研究结果。从飞秒到CW行动。考虑均匀金属球形纳米颗粒。讨论了用金属纳米颗粒中的电子晶格系统的超短激光脉冲的相互作用，并提出了电子 - 声子耦合的新颖结果。研究了纳米颗粒吸收的辐射能量转化为其热能，纳米颗粒加热和热传递到环境培养基的转化。综述纳米颗粒和培养基温度的时间和空间依赖性，考虑到纳米颗粒的热光学参数和周围介质的温度依赖性。建立和讨论在确定的时间间隔内纳米颗粒和纳米颗粒组件内的热定位（热限制），实际上没有热交换和环境。考虑纳米颗粒或纳米颗粒组件之间的热能和辐射加热期间的周围介质的再分配和围绕冷却。本综述介绍了激光纳米粒子相互作用热处理及其在光热纳米技术，纳米颗粒，激光加工的应用的热过程的平台，纳米颗粒，激光纳米型，非线性光学诊断和光化学。

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  • 来源
    《RSC Advances》 |2016年第84期|共24页
  • 作者

    Pustovalov Victor K.;

  • 作者单位

    Belarusian Natl Tech Univ Pr Independence 65 Minsk 220013 Byelarus;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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