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

Akinori Sugiyama; Atsushi Nakajima

doi:10.1515/zpch-2013-0455

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

Akinori Sugiyama, Atsushi Nakajima

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

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 language	English
Pages (from-to)	459-470
Number of pages	12
Journal	Zeitschrift fur Physikalische Chemie
Volume	228
Issue number	4-5
DOIs	https://doi.org/10.1515/zpch-2013-0455
Publication status	Published - 2014 May

Keywords

Dye sensitization
IR laser
Shattering
Time-resolved imaging
Water microdroplet

ASJC Scopus subject areas

Physical and Theoretical Chemistry

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@article{496099d1919d4f78bfe4d59203376502,

title = "Wavelength dependence of water microdroplet shattering with dual IR lasers and dye sensitization",

abstract = "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.",

keywords = "Dye sensitization, IR laser, Shattering, Time-resolved imaging, Water microdroplet",

author = "Akinori Sugiyama and Atsushi Nakajima",

note = "Funding Information: Acknowledgement: This work is partly supported by a XFEL Usage Promotion Projects of the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) and by MEXT-Supported Program for the Strategic Research Foundation at Private Universities, 2009-2013. A. S. expresses his gratitude for a research fellowship from the Japan Society for the Promotion of Science for Young Scientist.",

year = "2014",

month = may,

doi = "10.1515/zpch-2013-0455",

language = "English",

volume = "228",

pages = "459--470",

journal = "Zeitschrift fur Physikalische Chemie",

issn = "0942-9352",

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AU - Sugiyama, Akinori

AU - Nakajima, Atsushi

N1 - Funding Information: Acknowledgement: This work is partly supported by a XFEL Usage Promotion Projects of the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) and by MEXT-Supported Program for the Strategic Research Foundation at Private Universities, 2009-2013. A. S. expresses his gratitude for a research fellowship from the Japan Society for the Promotion of Science for Young Scientist.

PY - 2014/5

Y1 - 2014/5

N2 - 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.

AB - 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.

KW - Dye sensitization

KW - IR laser

KW - Shattering

KW - Time-resolved imaging

KW - Water microdroplet

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JO - Zeitschrift fur Physikalische Chemie

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IS - 4-5

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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