Thermocapillary manipulation of droplets using holographic beam shaping: Microfluidic pin ball

摘要: We demonstrate that holographically generated optical patterns offer greater flexibility for the thermocapillary control of water droplets than Gaussian spots; can be stopped in faster flows while using less intensity when surface tension variations are created by line instead single spots. Further, experiments performed making use variable light to achieve controlled droplet routing a four-way cross microfluidic channel. Finally, multiple storage is demonstrated as well changing drop order.