First, a photographic plate is coated with a light-sensitive material.

首先，把一个照相底片覆盖上感光材料。

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It involves focusing tiny, ultrashort pulses from a near-infrared laser on a light-sensitive material.

它包括聚焦微小，超短脉冲从近红外线激光的感光材料。

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First, the photograph plate is coated with light-sensitive material. Then the plate is position so the image seen by telescope is recorded on it.

首先，照相的地板要覆盖有感光材料，并把他们放置进去以便天文望远镜看到的图像能被记录下来。

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The goal was to substitute photoreceptors with a light-sensitive material capable of restoring photosensitivity to the retina, by easing down the retina on a layer of organic photovoltaic semiconductor.

FORBES: Artificial Retina From A Photovoltaic Polymer