Wavelength dependence of water microdroplet shattering with dual IR lasers and dye sensitization

Akinori Sugiyama, Atsushi Nakajima

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We have used time-resolved imaging to examine the effect of incident radiation wavelength in the range 2.75-3.75 μm on the shattering of water microdroplets by single and dual lasers. Dye sensitization of microdroplets was induced by using the water-soluble dye sulforhodamine G; this enabled us to observe both the forward and backward components of fragmented droplets and splashes. Compared with employing a single IR laser, simultaneous illumination by two IR lasers can effectively compress the spatial distribution of small fragments around the absorption maximum for the OH-stretching vibration of liquid water (y=2.75-3.25 μm). Scattering and compression of the fragmented microdroplets after single and dual IR laser irradiation can be explained by conservation of momentum.

Original languageEnglish
Pages (from-to)459-470
Number of pages12
JournalZeitschrift fur Physikalische Chemie
Issue number4-5
Publication statusPublished - 2014 May


  • Dye sensitization
  • IR laser
  • Shattering
  • Time-resolved imaging
  • Water microdroplet

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry


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