Photo-thermal micropump based on capillary optical fiber
A technology of capillary tube and micropump, which is applied to components, pumps, and optics of pumping devices for elastic fluids, and can solve problems such as complex manufacturing processes, difficult integration, and increased system complexity
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[0051] The present invention will be further explained below in conjunction with the drawings and specific embodiments.
[0052] figure 1 A cross-sectional view of a capillary fiber is shown. The capillary fiber is composed of a thin layer, a ring core with a refractive index slightly higher than that of the cladding material, and an air hole structure that can enter the microfluid.
[0053] figure 2 It shows that one end of the capillary fiber is heated and melted to collapse and close the capillary hole to form a solid light wave channel 2-1, thereby becoming an optical interface interconnected with an external energy light source, and the unprocessed other end is an open channel Port 2-2, this is both the outlet of the micropump and the inlet of the chip microfluid. The side femtosecond punching technology is used on the outer surface of the optical fiber near the fusion-shrinking end, and a micro-flow material micro-porous channel entrance is processed and used as the inlet 2-...
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