Linear 2D Beam Steering With a Large Focusing Grating via Focal Point Movement and Wavelength
2021
We demonstrate a 2D beam-steering device in SiN based on a large focusing grating, achieving a steering range of $3.2^\circ \times 46^\circ $ , with discrete steps in azimuth. Despite the curved geometry, it achieves linear raster scanning. It employs only a single SiN layer and a low-resolution full etch.
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