High-NA Imaging Cell
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ColdQuanta’s high-quality glass cells offer a new level of optical access to in-vacuum experiments. Assembled with an optical contacting process, the cells provide high-quality AR coatings while maintaining very high optical flatness in the cell walls, enabling minimal optical distortion through the cell. The cell is designed to ensure excellent parallelism between the two large faces, making it possible to image or project light through two faces of the cell with low astigmatism at numerical apertures of up to 0.7. The cells are connected to the flange through an anodic bond to a silicon transfer, and have no epoxy or frits, giving them excellent UHV properties.