Abstract
The increased usage of liquid lenses motivates us to investigate surface waves on the liquid's surface. During fast focal switching, the surface waves decrease the imaging quality. We propose a model that describes the surface modes appearing on a liquid lens and predicts the resonance frequencies. The effects of those surface modes on a laser beam are simulated using Fresnel propagation, and the model is verified experimentally.
Highlights
The increased usage of liquid lenses motivates us to investigate surface waves on the liquid’s surface
We propose a model that describes the surface modes appearing on a liquid lens and predicts the resonance frequencies
While liquid lenses can avoid astigmatism by using several electrodes, in particular, spherical aberration is challenging for example in dual beam auto focussing systems,11 even without switching the focal length
Summary
The increased usage of liquid lenses motivates us to investigate surface waves on the liquid’s surface. We propose a model that describes the surface modes appearing on a liquid lens and predicts the resonance frequencies. The effects of those surface modes on a laser beam are simulated using Fresnel propagation, and the model is verified experimentally.
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