Search Results - Ho-Pui Ho
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Reconfigurable Sorting of Nanoparticles on a Thermal Tuning Silicon Based Optofluidic Chip
Published 2018-01-01Get full textWe numerically demonstrate a scheme of optofluidic sorting of nanoparticles on a silicon-based lab-on-a-chip system, with reconfigurable and multilevel sorting size thresholds. Size-dependent sorting of nanoparticles originates from the size-dependent distribution of trapping potential wells, which...
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Optofluidic Switching of Nanoparticles Based on a WDM Tree Splitter
Published 2016-01-01Get full textWe demonstrate a silicon-based wavelength-division multiplexing (WDM) tree splitter for optofluidic switching of nanoparticles in a lab-on-a-chip or nanofluidic system. The gradient force and scattering force induced by the evanescent field can, respectively, lead to trapping and transportation of c...
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Controllable Droplet Generators by Light-Heat Energy Conversion for Selective Particle Encapsulation
Published 2020-01-01Get full textWater-in-oil droplet generation for object encapsulation is of increasing importance in biochemical reaction, drug diagnostics, and environmental science. Optofluidic technique is a powerful tool for manipulating mesoscopic particles and droplets within a continuous liquid phase. Here, we report a f...
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