Micropump and micromixer driven by laser and AC electric field

Michihiko Nakano, Kazunori Takashima, Shinji Katsura, Akira Mizuno

Research output: Contribution to conferencePaper

Abstract

Fluid flow generated by laser irradiation in an AC electric field was investigated with a view to using it as the driving force for a micropump and a micromixer. We discovered an opto-electrostatic phenomenon known as opto-electrostatic micro vortex (OEMV) ten years ago. The OEMV is generated around the focal point of an infrared laser beam located in the center of an intense high-frequency electric field. The OEMV is an opposed flow. The direction of the flow is parallel to the AC electric field, and perpendicular to the sides of the electrodes. When the laser focus was positioned near one of the electrodes, a one-directional flow was generated toward the other electrode. These two flow patterns could be used as a micro-mixer and a micro-pump, respectively. The OEMV was generated in a microchannel by simultaneous application of an Nd:YAG laser (1064 nm) and an AC voltage. In this paper, it was investigated that the correlation between flow rate and laser power, AC voltage and AC frequency.

Original languageEnglish
Pages104-106
Number of pages3
Publication statusPublished - Jan 1 2006
Externally publishedYes
Event10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2006 - Tokyo, Japan
Duration: Nov 5 2006Nov 9 2006

Other

Other10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2006
CountryJapan
CityTokyo
Period11/5/0611/9/06

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All Science Journal Classification (ASJC) codes

  • Chemical Engineering (miscellaneous)
  • Bioengineering

Cite this

Nakano, M., Takashima, K., Katsura, S., & Mizuno, A. (2006). Micropump and micromixer driven by laser and AC electric field. 104-106. Paper presented at 10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2006, Tokyo, Japan.