Large scalable and compact hybrid plasmonic nanoantenna array

Yue Xu; Tao Dong; Jingwen He; Qian Wan

doi:10.1117/1.OE.57.8.087101

1 August 2018 Large scalable and compact hybrid plasmonic nanoantenna array

Yue Xu, Tao Dong, Jingwen He, Qian Wan

Author Affiliations +

Optical Engineering, Vol. 57, Issue 8, 087101 (August 2018). https://doi.org/10.1117/1.OE.57.8.087101

Abstract

We propose a scheme for a large scalable and compact antenna array with subwavelength antenna spacing. In this scheme, the array consists of a series of hybrid plasmonic nanoantennas, which operate at 1550 nm and have a subwavelength footprint. In a wide bandwidth, the nanoantenna is highly compatible with a low-loss silicon waveguide, which feeds light from the bottom of the nanoantenna. Based on the proposed nanoantenna, two silicon photonic antenna arrays (1 × 8 and 8 × 8) are designed and investigated in detail. Both the one- and two-dimensional arrays can realize wide steering without grating lobes. For the 8 × 8 array, a high gain of 24.2 dB and wide steering range of 88.0 deg × 90.0 deg are achieved.

Citation Download Citation

Yue Xu, Tao Dong, Jingwen He, and Qian Wan "Large scalable and compact hybrid plasmonic nanoantenna array," Optical Engineering 57(8), 087101 (1 August 2018). https://doi.org/10.1117/1.OE.57.8.087101

Received: 8 April 2018; Accepted: 12 July 2018; Published: 1 August 2018

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