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Breaking FOV-Aperture Trade-Off with Multi-Mode Nano-Photonic Antennas

Fatemi, Reza and Khial, Parham P. and Khachaturian, Aroutin and Hajimiri, Ali (2021) Breaking FOV-Aperture Trade-Off with Multi-Mode Nano-Photonic Antennas. IEEE Journal of Selected Topics in Quantum Electronics, 27 (1). Art. No. 6100614. ISSN 1077-260X.

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Nano-photonic antennas are one of the key components in integrated photonic transmitter and receiver systems. Conventionally, grating couplers, designed to couple into an optical fiber, suffering from limitations such as large footprint and small field-of-view (FOV) have been used as on-chip antennas. The challenge of the antenna design is more pronounced for the receiver systems, where both the collected power by the antenna and its FOV often need to be maximized. While some novel solutions have been demonstrated recently, identifying fundamental limits and trade-offs in nano-photonic antenna design is essential for devising compact antenna structures with improved performance. In this paper, the fundamental electromagnetic limits, as well as fabrication imposed constraints on improving antenna effective aperture and FOV are studied, and approximated performance upper limits are derived and quantified. By deviating from the conventional assumptions leading to these limits, high-performance multi-mode antenna structures with performance characteristics beyond the conventional perceived limits are demonstrated. Finally, the application of a pillar multi-mode antenna in a dense array is discussed, an antenna array with more than 95% collection efficiency and 170∘ FOV is demonstrated, and a coherent receiving system utilizing such an aperture is presented.

Item Type:Article
Related URLs:
URLURL TypeDescription
Fatemi, Reza0000-0001-9081-2608
Khial, Parham P.0000-0002-3242-8541
Khachaturian, Aroutin0000-0001-8304-3302
Hajimiri, Ali0000-0001-6736-8019
Additional Information:© 2020 IEEE. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see Manuscript received May 28, 2020; revised July 24, 2020 and September 15, 2020; accepted September 16, 2020. Date of publication September 25, 2020; date of current version October 15, 2020.
Funding AgencyGrant Number
Rothenberg Innovation Initiative (RI2)UNSPECIFIED
Subject Keywords:Phased arrays, nanotechnology, antenna arrays, antenna efficiency, antenna gain, antenna radiation patterns, antenna theory, antennas, aperture efficiency, optical arrays
Issue or Number:1
Record Number:CaltechAUTHORS:20201002-151459041
Persistent URL:
Official Citation:R. Fatemi, P. P. Khial, A. Khachaturian and A. Hajimiri, "Breaking FOV-Aperture Trade-Off With Multi-Mode Nano-Photonic Antennas," in IEEE Journal of Selected Topics in Quantum Electronics, vol. 27, no. 1, pp. 1-14, Jan.-Feb. 2021, Art no. 6100614, doi: 10.1109/JSTQE.2020.3026966
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:105771
Deposited By: George Porter
Deposited On:05 Oct 2020 14:33
Last Modified:20 Oct 2020 20:15

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