Chapter

Ultrafast Phenomena XVI

Volume 92 of the series Springer Series in Chemical Physics pp 149-151

Date:

Nanoscale Heat Transport Probed with Ultrafast Soft X-Rays

  • Mark SiemensAffiliated with1University of Colorado at Boulder Email author 
  • , Qing LiAffiliated with1University of Colorado at Boulder
  • , Margaret MurnaneAffiliated with1University of Colorado at Boulder
  • , Henry KapteynAffiliated with1University of Colorado at Boulder
  • , Ronggui YangAffiliated with1University of Colorado at Boulder
  • , Keith NelsonAffiliated withMassachusetts Institute of Technology

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Abstract

We characterize heat transport in nanostructures using coherent soft x-rays to probe thermally induced surface deformation. By varying the substrate temperature, we observe the transition from diffusive to quasi-ballistic heat transport