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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 8 — Apr. 9, 2012
  • pp: 8732–8740

Microbubble generation using fiber optic tips coated with nanoparticles

Reinher Pimentel-Domínguez, Juan Hernández-Cordero, and Roberto Zenit  »View Author Affiliations

Optics Express, Vol. 20, Issue 8, pp. 8732-8740 (2012)

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We show that fiber optic tips can be used as microbubble generators in liquid media. Using standard single-mode silica fibers incorporating nanoparticles (carbon nanoparticles and metallic powders), bubbles can be generated with low optical powers owing to the enhanced photothermal effects of the coating materials. We provide details about the hydrodynamic effects generated in the vicinity of the fiber tip during the coating process, bubble generation and growth. Flow visualization techniques show that thermal effects lead to bubble formation on the tip of the fibers, and coating optimization is crucial for optimal performance of the probes.

© 2012 OSA

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.6810) Lasers and laser optics : Thermal effects
(350.5340) Other areas of optics : Photothermal effects

ToC Category:
Laser Microfabrication

Original Manuscript: February 16, 2012
Revised Manuscript: March 21, 2012
Manuscript Accepted: March 21, 2012
Published: March 30, 2012

Reinher Pimentel-Domínguez, Juan Hernández-Cordero, and Roberto Zenit, "Microbubble generation using fiber optic tips coated with nanoparticles," Opt. Express 20, 8732-8740 (2012)

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