Creation of aspheric interfaces on an electrowetting liquid lens using surface oscillations
| Autor: | Peter A. A. M. Somers, Florian Bociort, Matthias Strauch, H. Paul Urbach |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
General Physics and Astronomy 02 engineering and technology 01 natural sciences Signal 010309 optics Axicon symbols.namesake Optics 0103 physical sciences Optics: optical devices and systems Instrumentation: optical instruments Hankel transform business.industry Oscillation 021001 nanoscience & nanotechnology Fluid dynamics: interfacial flows lcsh:QC1-999 Interferometry Spherical aberration OA-Fund TU Delft Microfluidics: wetting symbols Electrowetting 0210 nano-technology business Bessel function lcsh:Physics |
| Zdroj: | AIP Advances, 8(11) AIP Advances, Vol 8, Iss 11, Pp 115224-115224-7 (2018) |
| ISSN: | 2158-3226 |
| Popis: | A technique to create aspheric surface shapes on commercially available electrowetting liquid lenses is demonstrated. Based on a previously published surface oscillation model a technique using a Hankel transform is proposed and tested experimentally. An alternating actuation voltage is applied to the liquid lens to stimulate surface oscillations, that temporarily add up to the desired surface shape. The voltage signal can be repeated at video rate. The measurements were taken with a Mach-Zehnder interferometer and confirm the previous results. The capabilities and limitations of the proposed method are demonstrated using the examples of a Bessel surface, spherical aberration, an axicon, and a top hat structure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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