A review of silicon subwavelength gratings: building break-through devices with anisotropic metamaterials

JM Luque-González, A Sánchez-Postigo… - …, 2021 - degruyter.com
Silicon photonics is playing a key role in areas as diverse as high-speed optical
communications, neural networks, supercomputing, quantum photonics, and sensing, which …

Free-space applications of silicon photonics: A review

CY Hsu, GZ Yiu, YC Chang - Micromachines, 2022 - mdpi.com
Silicon photonics has recently expanded its applications to delivering free-space emissions
for detecting or manipulating external objects. The most notable example is the silicon …

Circular optical phased array with large steering range and high resolution

D Benedikovič, Q Liu, A Sánchez-Postigo, A Atieh… - Sensors, 2022 - mdpi.com
Light detection and ranging systems based on optical phased arrays and integrated silicon
photonics have sparked a surge of applications over the recent years. This includes …

Fast-speed and low-power-consumption optical phased array based on lithium niobate waveguides

Z Wang, X Li, J Ji, Z Sun, J Sun, B Fang, J Lu, S Li… - …, 2024 - degruyter.com
Fast scanning speed and low-power consumption are becoming progressively more and
more important in realizing high-performance chiplet optical phased arrays (OPAs). Here …

On‐Chip Metamaterial Antenna Array with Distributed Bragg Deflector for Generation of Collimated Steerable Beams

P Ginel‐Moreno, A Hadij‐ElHouati… - Laser & Photonics …, 2022 - Wiley Online Library
The generation of collimated steerable beams of light is a fundamental function in optics
needed in many applications, including free‐space optical communications, remote sensing …

Ultralong waveguide grating antenna enabled by evanescent field modulation

W Yao, Z Huang, J Chen, W Li, L Yu, Y Zou, X Zhao… - Optics Letters, 2022 - opg.optica.org
Waveguide grating antenna (WGA) is a key component for an on-chip optical phased array.
In order to form a beam with a small divergence angle, WGAs of several millimeters in length …

Toward practical optical phased arrays through grating antenna engineering

Y Shuai, Z Zhou, H Su - Photonics, 2023 - mdpi.com
In recent years, using silicon-based waveguide grating antennas in optical phased array has
become a research focus. To date, this technique has not been widely implemented in …

High-performance and flexible metamaterial wave absorbers with specific bandwidths for the microwave device

H Zheng, L Chen, YP Lee - Crystals, 2023 - mdpi.com
In this paper, we proposed a high-performance electromagnetic-wave metamaterial
absorber which can be used directly for 5G technology. The absorber exhibits a high …

Multilayered high-directional waveguide grating antenna based on interleaved etching for optical phased arrays

Y Bo, Q Wang, J Wang, Y Cai, W Yue… - Current Optics and …, 2023 - opg.optica.org
We propose a highly directional waveguide grating antenna for an optical phased array,
achieving high directionality of more than 97% by interleaving the trenches with different …

Vertical directional coupling based grating emission engineering for optical phased arrays

J Duan, W Yao, X Zhao, C Liu, W Gao, YB Chen… - Optics Letters, 2024 - opg.optica.org
In this Letter, a novel, to the best of our knowledge, vertical directional coupling waveguide
grating (VDCWG) architecture is proposed to increase the length of waveguide grating …