All-dielectric metalens-based Hartmann-Shack array for optical multi-parameters detection

Yuxi Wang; Zhaokun Wang; Xing Feng; Cheng Zeng; Zhenyu Yang; Jinsong Xia

doi:10.1117/12.2534631

5 September 2019 All-dielectric metalens-based Hartmann-Shack array for optical multi-parameters detection

Yuxi Wang, Zhaokun Wang, Xing Feng, Cheng Zeng, Zhenyu Yang, Jinsong Xia

Proceedings Volume 11080, Metamaterials, Metadevices, and Metasystems 2019; 1108034 (2019) https://doi.org/10.1117/12.2534631
Event: SPIE Nanoscience + Engineering, 2019, San Diego, California, United States

Abstract

Measuring light’s information of polarization and phase in real time is very important in optics. Since metasurfaces enable the wavefront manipulation, which can replace some conventional optical components and make the system extremely compact. Here, we apply the concept of metasurface to system level, creating a generalized Hartmann-Shack array based on 3×2 sub-arrays of silicon-based metalenses for optical multi-parameters detection, which not only measures phase and phase-gradient profiles of optical beams but also measures spatial polarization profiles at the same time. The silicon-based metalenses, with a numerical aperture of 0.32 and a mean measured focusing efficiency in transmission mode of 28% at a wavelength of 1550 nm. Furthermore, we demonstrate detections of a radially polarized beam, an azimuthally polarized beam and a vortex beam.

Citation Download Citation

Yuxi Wang, Zhaokun Wang, Xing Feng, Cheng Zeng, Zhenyu Yang, and Jinsong Xia "All-dielectric metalens-based Hartmann-Shack array for optical multi-parameters detection", Proc. SPIE 11080, Metamaterials, Metadevices, and Metasystems 2019, 1108034 (5 September 2019); https://doi.org/10.1117/12.2534631

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