Compact dynamic microfluidic iris for active optics |
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| Authors: | Christina Kimmle Udo SchmittatChristoph Doering Henning Fouckhardt |
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| Affiliation: | Kaiserslautern University of Technology, Physics Department and Nano+Bio Center, P.O. Box 3049, D-67653 Kaiserslautern, Germany |
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| Abstract: | Two microfluidic concepts for a dynamic iris are presented. One is based on a double-spiral capillary channel lithographically defined in SU-8 photoresist and filled with two non-mixing fluids, one opaque and one transparent. The position of the meniscus between the liquids determines the grade of iris closure. The second approach uses an elastomer half-sphere pressed against a substrate more or less, thus squeezing away an opaque liquid and opening the iris to a specific extent. |
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| Keywords: | Active optics Dynamic iris Microfluidics |
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