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Opt Lett. 2010 Apr 1;35(7):1106-8. doi: 10.1364/OL.35.001106.

Fabrication of microfluidic channels with a circular cross section using spatiotemporally focused femtosecond laser pulses.

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  • 1State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, P.O. Box 800-211, Shanghai 201800, China.


We report on the fabrication of hollow microfluidic channels with a circular cross-sectional shape embedded in fused silica by spatiotemporally focusing the femtosecond laser beam. We demonstrate both theoretically and experimentally that the spatiotemporal focusing of femtosecond laser beam allows for the creation of a three-dimensionally symmetric spherical intensity distribution at the focal spot.

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