Results 1 to 10 of about 2,488,982 (275)

Circular Optical Phased Arrays with Radial Nano-Antennas [PDF]

open access: yesNanomaterials, 2022
On-chip optical phased arrays (OPAs) are the enabling technology for diverse applications, ranging from optical interconnects to metrology and light detection and ranging (LIDAR).
Qiankun Liu   +5 more
doaj   +4 more sources

Integrated Optical Phased Arrays for Beam Forming and Steering

open access: yesApplied Sciences, 2021
Integrated optical phased arrays can be used for beam shaping and steering with a small footprint, lightweight, high mechanical stability, low price, and high-yield, benefiting from the mature CMOS-compatible fabrication.
Yongjun Guo   +5 more
doaj   +4 more sources

All-Solid-State Optical Phased Arrays of Mid-Infrared Based Graphene-Metal Hybrid Metasurfaces [PDF]

open access: yesNanomaterials, 2021
Optical phased arrays (OPAs) are essential optical elements in applications that require the ability to manipulate the light-wavefront, such as beam focusing and light steering.
Yue Wang   +6 more
doaj   +4 more sources

Design of Monolithic 2D Optical Phased Arrays Heterogeneously Integrated with On-Chip Laser Arrays Based on SOI Photonic Platform [PDF]

open access: yesMicromachines, 2022
In this work, heterogeneous integration of both two-dimensional (2D) optical phased arrays (OPAs) and on-chip laser arrays based on a silicon photonic platform is proposed.
Jian Yue   +9 more
doaj   +4 more sources

Deep neural network-based phase calibration in integrated optical phased arrays [PDF]

open access: yesScientific Reports, 2023
Calibrating the phase in integrated optical phased arrays (OPAs) is a crucial procedure for addressing phase errors and achieving the desired beamforming results.
Jae-Yong Kim   +9 more
doaj   +2 more sources

Toward Practical Optical Phased Arrays through Grating Antenna Engineering

open access: yesPhotonics, 2023
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 practical applications.
Youqiang Shuai, Zhiping Zhou, Hui Su
doaj   +3 more sources

Optical tweezing of microparticles and cells using silicon-photonics-based optical phased arrays [PDF]

open access: yesNature Communications
Integrated optical tweezers have the potential to enable highly-compact, low-cost, mass-manufactured, and broadly-accessible optical manipulation when compared to standard bulk-optical tweezers.
Tal Sneh   +5 more
doaj   +2 more sources

Optical phased arrays for wavefront shaping in forward scattering media [PDF]

open access: yesNanophotonics
High-resolution optical imaging in thick tissue samples remains elusive, mainly because of the scattering exhibited by the tissue. With increasing depth, the number of nonscattered photons exponentially decreases – limiting the use of conventional ...
Milojković Filip   +5 more
doaj   +2 more sources

Reduced-crosstalk antennas for grating-lobe-free and wide-field-of-view integrated optical phased arrays [PDF]

open access: yesNature Communications
Integrated optical phased arrays (OPAs) have emerged as a promising technology for many applications due to their ability to dynamically control free-space optical beams in a compact and non-mechanical manner.
Henry Crawford-Eng   +5 more
doaj   +2 more sources

Topology and Polarization of Optical Vortex Fields from Atomic Phased Arrays

open access: yesApplied Sciences, 2023
We developed a theoretical formalism for the generation of optical vortices by phased arrays of atoms. Using the Jacobi–Anger expansion, we demonstrated the resulting field topology and determined the least number of individual atoms necessary for the ...
Hao Wang, Andrei Afanasev
doaj   +3 more sources

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