AI Article Synopsis
- A Y-branched optical waveguide can efficiently sort polystyrene microparticles by using its evanescent field to guide them into a more illuminated output branch.
- The system employs a 1066 nm fibre laser, with the power distribution between output branches adjustable based on the fiber's position relative to the waveguide.
- This technique allows for reliable particle sorting with a high success rate and can be integrated with other micro-analysis methods for future applications.
Article Abstract
We demonstrate how a Y-branched optical waveguide can be used for microparticle sorting. Polystyrene microparticles, optically guided in the waveguide's evanescent field, are directed down the desired, more strongly illuminated, output branch. The output of a fibre laser at a wavelength of 1066 nm is coupled to the waveguide by direct butting. The power distribution between the two output branches is selected by the relative position of the fibre to the waveguide input facet. This provides a simple method for reliable particle sorting with very high probability of success under appropriate conditions. The method can be easily combined with other particle manipulation techniques of interest for micro total analysis systems of the future.
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| http://dx.doi.org/10.1364/opex.13.000001 | DOI Listing |
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