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Computational complex optical field imaging using a designed metasurface diffuser

Kwon, Hyounghan and Arbabi, Ehsan and Kamali, Seyedeh Mahsa and Faraji-Dana, MohammadSadegh and Faraon, Andrei (2018) Computational complex optical field imaging using a designed metasurface diffuser. Optica, 5 (8). pp. 924-931. ISSN 2334-2536. doi:10.1364/OPTICA.5.000924.

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Various speckle-based computational imaging techniques that exploit the ability of scattering media to transfer hidden information into the speckle pattern have recently been demonstrated. Current implementations suffer from several drawbacks associated with the use of conventional scattering media (CSM), such as their time-consuming characterization, instability with time, and limited memory-effect range. Here we show that by using a random dielectric metasurface diffuser (MD) with known scattering properties, many of these issues can be addressed. We experimentally demonstrate an imaging system with the ability to retrieve complex field values using a MD and the speckle-correlation scattering matrix method. We explore the mathematical properties of the MD transmission matrix such as its correlation and singular value spectrum to expand the understanding about both MDs and the speckle-correlation scattering matrix approach. In addition to a large noise tolerance, reliable reproducibility, and robustness against misalignments, using the MD allows us to substitute the laborious experimental characterization procedure of the CSM with a simple simulation process. Moreover, dielectric MDs with identical scattering properties can easily be mass-produced, thus enabling real-world applications. Representing a bridge between metasurface optics and speckle-based computational imaging, this work paves the way to extending the potentials of diverse speckle-based computational imaging methods for various applications such as biomedical imaging, holography, and optical encryption.

Item Type:Article
Related URLs:
URLURL TypeDescription
Arbabi, Ehsan0000-0002-5328-3863
Kamali, Seyedeh Mahsa0000-0002-6968-811X
Faraon, Andrei0000-0002-8141-391X
Additional Information:© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. Received 27 April 2018; revised 27 June 2018; accepted 3 July 2018 (Doc. ID 330497); published 30 July 2018. We thank Babak Hassibi, Changhuei Yang, and Juhyun Kim for helpful discussion. We greatly appreciate the critical support and infrastructure provided for this work by the Kavli Nanoscience Institute at Caltech. Funding: Caltech Innovation Initiative.
Funding AgencyGrant Number
Caltech Innovation Initiative (CI2)UNSPECIFIED
Issue or Number:8
Classification Code:OCIS codes: (050.6624) Subwavelength structures; (110.6880) Three-dimensional image acquisition; (110.1758) Computational imaging
Record Number:CaltechAUTHORS:20180906-132123404
Persistent URL:
Official Citation:H. Kwon, E. Arbabi, S. Kamali, M. Faraji-Dana, and A. Faraon, "Computational complex optical field imaging using a designed metasurface diffuser," Optica 5, 924-931 (2018)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:89419
Deposited By: Tony Diaz
Deposited On:06 Sep 2018 23:48
Last Modified:16 Nov 2021 00:35

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