High-resolution aliasing-free optical beam steering

DN Hutchison, J Sun, JK Doylend, R Kumar, J Heck… - Optica, 2016 - opg.optica.org
Many applications, including laser (LIDAR) mapping, free-space optical communications,
and spatially resolved optical sensors, demand compact, robust solutions to steering an …

Sparse aperiodic arrays for optical beam forming and LIDAR

T Komljenovic, R Helkey, L Coldren, JE Bowers - Optics express, 2017 - opg.optica.org
We analyze optical phased arrays with aperiodic pitch and element-to-element spacing
greater than one wavelength at channel counts exceeding hundreds of elements. We …

Optical phased arrays

A Yaacobi, MR Watts - US Patent 9,476,981, 2016 - Google Patents
An optical phased array formed of a large number of nanophotonic antenna elements can
be used to project complex images into the far field. These nanophotonic phased arrays …

On-chip calibration and control of optical phased arrays

T Komljenovic, P Pintus - Optics express, 2018 - opg.optica.org
Optical phased arrays (OPAs) are important as they allow beam steering and scanning with
no moving parts. As their channel count increases, the complexity of control and calibration …

Waveguide superlattice-based optical phased array

LM Leng, Y Shao, PY Zhao, GF Tao, SN Zhu… - Physical Review Applied, 2021 - APS
High-density low-crosstalk waveguide superlattices can potentially help shrink the pitch of
an optical phased array to half-wavelength, which may lead to superior beam …

Cascaded domain engineering optical phased array for beam steering

J Li, Y He, H Zheng, S Luo, X Liu, Q Hu… - Applied Physics …, 2023 - pubs.aip.org
Optical phased arrays (OPAs) encounter a formidable trade-off between performance and
design due to the intricacies of their system. Here, we propose a cascaded domain …

Optical phased arrays

A Yaacobi, MR Watts - US Patent 10,627,517, 2020 - Google Patents
An optical phased array formed of a large number of nanophotonic antenna elements can
be used to project complex images into the far field. These nanophotonic phased arrays …

Dynamic beam scanning metasurface with high reflectivity and independent phase control based on phase change materials

T Tang, K He, L Bi, C Li, J Qin, J Li, X Liang… - Optics & Laser …, 2022 - Elsevier
Laser phased array radar has a broad application prospect in extreme weather imaging, real-
time meteorological monitoring, intelligent self-driving, and adaptive scanning. Dynamic …

[HTML][HTML] Improved performance of optical phased arrays assisted by transparent graphene nanoheaters and air trenches

Y Wang, L Liang, Y Chen, P Jia, L Qin, Y Liu, Y Ning… - RSC …, 2018 - pubs.rsc.org
In this paper, high-performance optical phased arrays (OPAs) assisted by transparent
graphene nanoheaters and air trenches have been designed and simulated. By directly …

[HTML][HTML] Cascaded domain engineering optical phased array for 2D beam steering

J Li, H Zheng, Y He, Y Liu, X Wei, Z Xu - Nanophotonics, 2023 - degruyter.com
The current approach to 2D optical phased array (OPA) encounters challenges, such as the
requirement for a highly tunable laser that is incompatible with certain 2D beam-steering …