Metalens With Artificial Focus Pattern

@article{Ye2020MetalensWA,
  title={Metalens With Artificial Focus Pattern},
  author={Mao Ye and Vishva Ray and Dachuan Wu and Ya Sha Yi},
  journal={IEEE Photonics Technology Letters},
  year={2020},
  volume={32},
  pages={251-254}
}
  • M. Ye, V. Ray, +1 author Ya Sha Yi
  • Published 2020
  • Computer Science, Engineering, Physics
  • IEEE Photonics Technology Letters
Metalens as one of the most popular applications of emmerging optical metasurfaces has raised widspread interest recently. [...] Key Method New mechanism and generalizations of conventional point-focused metalens guiding principles have been proposed with metalens concentrating light to artificial focus pattern. As proving examples, we have demonstrated the engineering of metalens with artificial focus pattern by creating line and ring-shaped focus as 'drawing tools'.Expand
Recent Progress on Ultrathin Metalenses for Flat Optics
TLDR
Recent progress on metalenses is discussed including their basic design principles and notable characteristics such as aberration correction, tunability, and multifunctionality. Expand
Quadratic Meta-Reflectors Made of HfO2 Nanopillars with a Large Field of View at Infrared Wavelengths
TLDR
This study presents a flat optical metamaterial with a large FOV for imaging and deflecting, which can greatly simplify the optical–mechanical complexity of infrared systems, particularly with potential applications in high-power optical systems. Expand
High-Efficiency Multifunction Metasurface Based on Polarization Sensitivity
  • Hui-Fen Huang, Jian Zhang
  • Physics
  • IEEE Antennas and Wireless Propagation Letters
  • 2021
This letter proposes a unit integrating reflectarray and transmitarray functions together. The proposed units can form multifunctional metasurface (MS), which can realize both focusing (with requiredExpand
Achromatic and wide-field metalens in the visible region.
TLDR
This paper designs a double-layer metalens to achieve achromatic imaging over a field of view (FOV) of 60° in the visible light range of 470 nm to 650”nm, and its performance is verified by numerical simulations. Expand
Independent Bifocal Metalens Design Based on Deep Learning Algebra
We present a single-layer, transmissive metalens for focusing the orthogonal polarization components of incident light to two independent focal spots without affecting the initial orthogonalExpand

References

SHOWING 1-10 OF 22 REFERENCES
A broadband achromatic metalens for focusing and imaging in the visible
TLDR
It is shown that by judicious design of nanofins on a surface, it is possible to simultaneously control the phase, group delay and group delay dispersion of light, thereby achieving a transmissive achromatic metalens with large bandwidth. Expand
GaN Metalens for Pixel-Level Full-Color Routing at Visible Light.
TLDR
The approach with low-cost, semiconductor fabrication compatibility and high working efficiency characteristics offers a way for establishing a complete set of flat optical components for a wide range of applications such as compact imaging sensors, optical spectroscopy, and high-resolution lithography, just named a few. Expand
Linear polarization distinguishing metalens in visible wavelength.
TLDR
A novel metalens that integrates the function of a concentrating lens and linear polarizer that is fabricated through a complementary metal-oxide-semiconductor compatible nano fabrication process, and its performance is demonstrated through both simulation and experiment. Expand
Metasurface holograms reaching 80% efficiency.
TLDR
The design of the hologram integrates a ground metal plane with a geometric metasurface that enhances the conversion efficiency between the two circular polarization states, leading to high diffraction efficiency without complicating the fabrication process. Expand
Achromatic Flat Subwavelength Grating Lens Over Whole Visible Bandwidths
One of the major challenges for emerging planar subwavelength micro lens is the significant chromatic behavior due to phase mismatch of subwavelength phase shifters. In this letter, the achromaticExpand
Large area metalenses: design, characterization, and mass manufacturing.
TLDR
This work shows the design and fabrication of metasurface lenses (metalenses) with extremely large areas, up to centimeters in diameter and beyond, and experimentally implements the ideal thin lens equation, while demonstrating high-quality imaging and diffraction-limited focusing. Expand
Silicon-rich silicon nitride thin films for subwavelength grating metalens
In this work, high performance subwavelength grating metalens is demonstrated with high-refractive-index silicon-rich silicon nitride material compatible with CMOS fabrication processes. ConventionalExpand
Hyperbolic Metamaterial Devices for Wavefront Manipulation
Metasurfaces have shown great potential to reshape the wavefront of electromagnetic (EM) waves, but transmissive meta-devices face challenges of low-efficiency and/or fabrication complexities. Here,Expand
Silicon Nitride Metalenses for Close-to-One Numerical Aperture and Wide-Angle Visible Imaging
SiN is an emerging semiconductor for integrated optoelectronics, due to its ultralow loss in the visible region. Developing a high-performance SiN metamaterial lens (metalens) is attractive forExpand
Subwavelength grating microlens with taper-resistant characteristics.
  • M. Ye, Y. Yi
  • Materials Science, Medicine
  • Optics letters
  • 2017
TLDR
This work has discovered that a tapered sidewall profile may have a significant destructive effect on the concentration properties of subwavelength concentrating lenses/metasurfaces and discovered that there exist some period/fill-factor combinations for phase shifters that "resist" the phase shift from the tapered structure. Expand
...
1
2
3
...