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Micromachines 2016, 7(6), 102; doi:10.3390/mi7060102

Recent Developments in Optofluidic Lens Technology

Physics of Complex Fluids Group, MESA+ Institute, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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Academic Editor: Nam-Trung Nguyen
Received: 23 March 2016 / Revised: 6 June 2016 / Accepted: 6 June 2016 / Published: 10 June 2016
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Abstract

Optofluidics is a rapidly growing versatile branch of adaptive optics including a wide variety of applications such as tunable beam shaping tools, mirrors, apertures, and lenses. In this review, we focus on recent developments in optofluidic lenses, which arguably forms the most important part of optofluidics devices. We report first on a number of general characteristics and characterization methods for optofluidics lenses and their optical performance, including aberrations and their description in terms of Zernike polynomials. Subsequently, we discuss examples of actuation methods separately for spherical optofluidic lenses and for more recent tunable aspherical lenses. Advantages and disadvantages of various actuation schemes are presented, focusing in particular on electrowetting-driven lenses and pressure-driven liquid lenses that are covered by elastomeric sheets. We discuss in particular the opportunities for detailed aberration control by using either finely controlled electric fields or specifically designed elastomeric lenses. View Full-Text
Keywords: optofluidics; liquid lenses; photonics; optical MEMS; micro-optics; adaptive optics; optical aberrations; spherical aberration; lens characterization; wavefront sensing optofluidics; liquid lenses; photonics; optical MEMS; micro-optics; adaptive optics; optical aberrations; spherical aberration; lens characterization; wavefront sensing
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Mishra, K.; van den Ende, D.; Mugele, F. Recent Developments in Optofluidic Lens Technology. Micromachines 2016, 7, 102.

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