Study of surface modes on a vibrating electrowetting liquid lens

Strauch, Matthias; Shao, Yijia; Bociort, Florian; Urbach, H. P.

doi:10.1063/1.4999562

Cited by 20 publications

(7 citation statements)

References 29 publications

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“…Compared with natural frequencies of four modes obtained accurately by Strauch M et al, [11] where they observed all the frequencies except 17.95 Hz of mode (1,1) and 209.25 Hz of mode (0,3), the frequencies f 1 -f 4 of the rest four modes have a good match with our analysis and the error is no more than 4.90%, as shown in Table 1.…”

Section: Comparison With Experimentssupporting

confidence: 86%

“…Since electrowetting liquid lens was innovated, it has been received increased attention across a number of scientific inquiries in recent years, [1][2][3][4][5][6][7][8][9][10][11][12] such as the imaging of portable lens, [4,5] realizing the bionic compound eyes, [6] composing array displays, [7] enhancement of scanning microscopes, [8,9] and construction of holographic display systems. [10] There were also interesting studies of the liquid-liquid (L-L) interface in the lens for interference imaging, [11] which can be used to enhance the encryption randomness of phase mask in optical communication systems to prevent confrontational attacks. [12] In all kinds of applications, the rapid response of milliseconds is a major advantage for the liquid lens.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of natural frequency for imaging interface in liquid lens

Xie¹

2021

Chinese Phys. B

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Transmission beam can be modulated at the liquid-liquid interface inside an electrowetting liquid lens. The fluctuation characteristics of the interface has a decisive effect on the beam modulation. A closed cylinder in capillary constant scale is analyzed and the natural frequencies of a flat interface are obtained using capillary wave hydrodynamics. Results in modes 0 and 1 are in good agreement with previous experiments in the literature. The influences of the radius, the height ratio and the height-to-diameter ratio of a liquid lens on the interface eigenfrequencies are analyzed.

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Section: Comparison With Experimentssupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Analysis of natural frequency for imaging interface in liquid lens

Xie¹

2021

Chinese Phys. B

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“…Evaporation is also no longer a critical concern. The actuation mechanisms including electrowetting [40][41][42][43][44], mechanical-wetting [45][46][47][48], stimuliresponsive [49][50][51] and dielectric actuation [52][53][54] can be used.…”

Section: Lenses With Tunable Liquid/liquid Interface(s)mentioning

confidence: 99%

Optofluidic lenses for 2D and 3D imaging

Huang

Zhao

2019

J. Micromech. Microeng.

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Optofluidic lenses that modulate light using fluidic materials have been recognized as a powerful alternative to solid lenses. These lenses can achieve many advanced imaging capabilities that are difficult to achieve otherwise. In particular, such adaptive optical elements have shown great potentials in a broad array of applications in two-dimensional (2D) and three-dimensional (3D) imaging, including macro/microscopic imaging, optical coherence tomography, wide-angle imaging, spectral imaging, optical zooming, and switchable monocular/binocular vision. This article reviews current research efforts on optofluidic lenses for 2D/3D imaging. The configurations and actuation mechanisms of different types of optofluidic lenses and their representative imaging applications are introduced. The opportunities and challenges in this field are also discussed. This review is expected to provide a snapshot of the current landscape of optofluidic lenses research to attract more interests in this exciting field and foster the development of next-generation optofluidic lenses.

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“…So the mechanical silts are very bulky for incorporation into miniaturized optical systems. Recently years, liquid devices have attracted much attentions due to the advantages of polarizationindependence, high transmittance, and fast response [6]- [10]. In 2015, an electrowetting-based adjustable optical slit was proposed.…”

Section: Introductionmentioning

confidence: 99%

Adjustable Optical Slit Based on the Phase Type Spatial Light Modulator

2019

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In this paper, we propose an adjustable optical slit based on a phase type spatial light modulator (SLM). The adjustable optical slit consists of two polarized beam splitters and one SLM. The SLM is used to modulate the phase of light. A phase grayscale with specific structure is produced, where the middle phase is 0 and the phase on both sides is π. By changing the width of the slit grayscale, we can adjust the width of the slit easily. Our experiment shows that one-dimensional (1-D) slit and 2-D mask can be realized and the slit width can be tuned accordingly. The results verify its feasibility. The adjustment accuracy of slit can reach several microns, and the slit can also be laterally translated. The proposed device can be used not only in optical system or holographic display to improve the quality of the image, but also in spectrometers to select the specific spectral feature.

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Study of surface modes on a vibrating electrowetting liquid lens

Cited by 20 publications

References 29 publications

Analysis of natural frequency for imaging interface in liquid lens

Analysis of natural frequency for imaging interface in liquid lens

Optofluidic lenses for 2D and 3D imaging

Adjustable Optical Slit Based on the Phase Type Spatial Light Modulator

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