Metasurface on integrated photonic platform: from mode converters to machine learning.

Autor:	Wang Z; Department of Electrical and Computer Engineering, University of Delaware, Newark, DE 19711, USA.; Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA., Xiao Y; Department of Electrical and Computer Engineering, University of Delaware, Newark, DE 19711, USA., Liao K; Peking University, Beijing 100871, China., Li T; School of Electronic Engineering, Xi'an University of Posts & Telecommunications, Xi'an 710121, China., Song H; Department of Electrical & Computer Engineering, University of South California, Los Angeles, CA 90089, USA., Chen H; Nokia Bell Labs, 600 Mountain Ave, Murray Hill, NJ 07974, USA., Uddin SMZ; Department of Electrical and Computer Engineering, University of Delaware, Newark, DE 19711, USA., Mao D; Department of Electrical and Computer Engineering, University of Delaware, Newark, DE 19711, USA., Wang F; Peking University, Beijing 100871, China., Zhou Z; Peking University, Beijing 100871, China., Yuan B; Department of Electrical and Computer Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA., Jiang W; College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China., Fontaine NK; Nokia Bell Labs, 600 Mountain Ave, Murray Hill, NJ 07974, USA., Agrawal A; Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA., Willner AE; Department of Electrical & Computer Engineering, University of South California, Los Angeles, CA 90089, USA.; Department of Physics & Astronomy, University of Southern California, Los Angeles, CA 90089, USA., Hu X; Peking University, Beijing 100871, China., Gu T; Department of Electrical and Computer Engineering, University of Delaware, Newark, DE 19711, USA.
Jazyk:	angličtina
Zdroj:	Nanophotonics (Berlin, Germany) [Nanophotonics] 2022 Jul 20; Vol. 11 (16), pp. 3531-3546. Date of Electronic Publication: 2022 Jul 20 (Print Publication: 2022).
DOI:	10.1515/nanoph-2022-0294
Abstrakt:	Integrated photonic circuits are created as a stable and small form factor analogue of fiber-based optical systems, from wavelength-division multiplication transceivers to more recent mode-division multiplexing components. Silicon nanowire waveguides guide the light in a way that single and few mode fibers define the direction of signal flow. Beyond communication tasks, on-chip cascaded interferometers and photonic meshes are also sought for optical computing and advanced signal processing technology. Here we review an alternative way of defining the light flow in the integrated photonic platform, using arrays of subwavelength meta-atoms or metalines for guiding the diffraction and interference of light. The integrated metasurface system mimics free-space optics, where on-chip analogues of basic optical components are developed with foundry compatible geometry, such as low-loss lens, spatial-light modulator, and other wavefront shapers. We discuss the role of metasurface in integrated photonic signal processing systems, introduce the design principles of such metasurface systems for low loss compact mode conversion, mathematical operation, diffractive optical systems for hyperspectral imaging, and tuning schemes of metasurface systems. Then we perceive reconfigurability schemes for metasurface framework, toward optical neural networks and analog photonic accelerators. (© 2022 the author(s), published by De Gruyter, Berlin/Boston.)
Databáze:	MEDLINE
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