Undoped zinc oxide thin films were grown at room temperature using two techniques: plasma deposition (PD) and electron beam evaporation in an argon atmosphere. PD offers some advantages, such as low ion damage and low deposition temperature. The optical transmittance of the films deposited by both methods was higher than 80% in the near UV-VIS range; the energy band gap and index of refraction agree with values reported in the literature. The resistivity of films grown by PD was 3.1 Â 10 À2 V cm, lower than the value of 1.2 Â 10 À1 V cm found for plasma assisted e-beam evaporated films.
This paper presents the design of a dual-lens system capable of adjusting its focus by changing the distance between the lenses with a microfabricated supporting structure.The dimensions and displacement range were based on the needs of an accommodative intraocular lens (AIOL), but the concept can be extended to any other optical system that requires focal tuning.
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