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A University of Central Florida (UCF) team led by professor Shin-Tson Wu has developed a device made with cascaded liquid crystal (LC) flat optical elements, called a miniature planar telescope, that allows efficient, wide-angle, high-precision laser beam steering. The miniature planar telescope achieves steering angle magnification independent of the incident beam position. This angle magnification function cannot be achieved with a single-layer optical device, such as a grating or a refractive surface.
Although commercial-quality planar optical devices are available, research into planar optics has been focused on optical functionalities that can be fulfilled by a single-layer device. The UCF researchers thought that one way to…READ MORE