Simple and reliable phase measurement
This system retrieves the phase distribution of metalenses directly from scanned optical field data using a multi-distance phase retrieval algorithm, providing key information for design and optimization.
Zhao, Maoxiong · Yao, Jin · Liu, Xiaoyuan · Shi, Lei · Tsai, Din Ping · Geng, Zihan · Chen, Mu Ku
Light: Science and Applications 2024
Can retrieve phase distribution of metalens under low noise and sufficient scanning length
Can measure phase distribution of metalens operating in NIR spectrum
Can characterize phase modulation of metalens in different media such as air and ethanol