Focal-length Measurement of Multifocal Metalens by Using Far-field Imaging
IEEE PHOTONICS TECHNOLOGY LETTERS（2025）
Key words
Lenses,Gray-scale,Measurement by laser beam,Light sources,Optical imaging,Length measurement,Adaptive optics,Optical filters,Metasurfaces,Light emitting diodes,Metalens,multifocal,secondary imaging technology,focal length measurement
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