Monocular depth sensing using metalens
Name
Nanophotonics - 2023 - Yang - Monocular depth sensing using metalens.pdf
Description
Published version
Size
3.3 MB
Format
Adobe PDF
Checksum (MD5)
7584311ef00c80f7085b596bb62fd097
Author(s)
Yang, Fan
Lin, Hung‐I
Chen, Peng
Hu, Juejun
Gu, Tian
Date Issued
April 28, 2023
Journal
Nanophotonics
Publisher
Wiley
Citation
Yang, F., Lin, H.-I., Chen, P., Hu, J. and Gu, T. (2023), Monocular depth sensing using metalens. Nanophotonics, 12: 2987-2996.
Version
Final published version
Abstract
3-D depth sensing is essential for many applications ranging from consumer electronics to robotics. Passive depth sensing techniques based on a double-helix (DH) point-spread-function (PSF) feature high depth estimation precision, minimal power consumption, and reduced system complexity compared to active sensing methods. Here, we propose and experimentally implemented a polarization-multiplexed DH metalens designed using an autonomous direct search algorithm, which utilizes two contra-rotating DH PSFs encoded in orthogonal polarization states to enable monocular depth perception. Using a reconstruction algorithm that we developed, concurrent depth calculation and scene reconstruction with minimum distortion and high resolution in all three dimensions were demonstrated.
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1515/nanoph-2023-0088
