Broadband achromatic tunable polarization rotator
Sign Up to like & getrecommendations! Published in 2020 at "Optics Communications"
DOI: 10.1016/j.optcom.2019.124456
Abstract: Abstract We demonstrate and experimentally verify an achromatic tunable polarization rotator based on Berry phase using three non-ideal mirrors. A parallel transport matrix algorithm is used to determine polarization rotation for all linear polarization states.… read more here.
Keywords: polarization; tunable polarization; achromatic tunable; polarization rotator ... See more keywords
Broadband achromatic optical metasurface devices
Sign Up to like & getrecommendations! Published in 2017 at "Nature Communications"
DOI: 10.1038/s41467-017-00166-7
Abstract: Among various flat optical devices, metasurfaces have presented their great ability in efficient manipulation of light fields and have been proposed for variety of devices with specific functionalities. However, due to the high phase dispersion… read more here.
Keywords: chromatic aberration; metasurface devices; achromatic optical; metasurface ... See more keywords
A broadband achromatic polarization-insensitive metalens consisting of anisotropic nanostructures
Sign Up to like & getrecommendations! Published in 2019 at "Nature Communications"
DOI: 10.1038/s41467-019-08305-y
Abstract: Metasurfaces have attracted widespread attention due to an increasing demand of compact and wearable optical devices. For many applications, polarization-insensitive metasurfaces are highly desirable, and appear to limit the choice of their constituent elements to… read more here.
Keywords: achromatic polarization; insensitive metalens; anisotropic; polarization ... See more keywords
A broadband achromatic metalens for focusing and imaging in the visible
Sign Up to like & getrecommendations! Published in 2018 at "Nature Nanotechnology"
DOI: 10.1038/s41565-017-0034-6
Abstract: A key goal of metalens research is to achieve wavefront shaping of light using optical elements with thicknesses on the order of the wavelength. Such miniaturization is expected to lead to compact, nanoscale optical devices… read more here.
Keywords: imaging visible; achromatic metalens; broadband achromatic; group delay ... See more keywords
Broadband achromatic metalens based on lithium niobite on insulator
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Physics D: Applied Physics"
DOI: 10.1088/1361-6463/ac2068
Abstract: Metalenses offer a unique platform to focus light by manipulating the properties of an incoming light wavefront. It is still a challenge to create an achromatic polarization-independent metalens, because of the complexity of satisfying the… read more here.
Keywords: lithium niobite; achromatic metalens; physics; metalens based ... See more keywords
Broadband achromatic electromagnetic beam control based on reflective metamaterial
Sign Up to like & getrecommendations! Published in 2023 at "Laser Physics Letters"
DOI: 10.1088/1612-202x/acd7df
Abstract: The emergence of metasurfaces has shown great potential in planar optics. From visible light to infrared wavelengths, various forms of metasurfaces have been studied to control electromagnetic waves. Due to the dispersive properties of light… read more here.
Keywords: beam control; control based; control; achromatic electromagnetic ... See more keywords
Broadband achromatic polarization-insensitive metalens in the mid-wave infrared range.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.454303
Abstract: Infrared imaging is widely used in astronomical observation, medical diagnosis, and military applications. In recent years, metasurface technology has provided an unparalleled platform for the development of miniaturized and integrated infrared imaging systems. However, metasurfaces… read more here.
Keywords: insensitive metalens; broadband achromatic; mid wave; wave infrared ... See more keywords
Broadband achromatic longitudinal bifocal metalens in the visible range based on a single nanofin unit cell.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.450601
Abstract: Metasurfaces provide a remarkable platform to manipulate over phase, amplitude, and polarization flexibly and precisely. Bifocal metalens draws great research interest due to its ability of converging wavefronts to different focal positions horizontally and longitudinally.… read more here.
Keywords: broadband achromatic; achromatic longitudinal; bifocal metalens; based single ... See more keywords
Polarization-modulated broadband achromatic bifunctional metasurface in the visible light.
Sign Up to like & getrecommendations! Published in 2023 at "Optics express"
DOI: 10.1364/oe.484078
Abstract: Achromatic bifunctional metasurface is of great significance in optical path miniaturization among advanced integrated optical systems. However, the reported achromatic metalenses mostly utilize a phase compensate scheme, which uses geometric phase to realize the functionality… read more here.
Keywords: phase; bifunctional metasurface; broadband achromatic; polarization ... See more keywords
Mid-Infrared Broadband Achromatic Metalens with Wide Field of View
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15217587
Abstract: Metasurfaces have the ability to flexibly control the light wavefront, and they are expected to fill the gaps of traditional optics. However, various aberrations pose challenges for the application of metasurfaces in the wide angle… read more here.
Keywords: achromatic metalens; infrared broadband; mid infrared; broadband achromatic ... See more keywords
Time-Effective Simulation Methodology for Broadband Achromatic Metalens Using Deep Neural Networks
Sign Up to like & getrecommendations! Published in 2021 at "Nanomaterials"
DOI: 10.3390/nano11081966
Abstract: Metasurface has demonstrated potential and novel optical properties in previous research. The prevailing method of designing a macroscale metasurface is based on the local periodic approximation. Such a method relies on the pre-calculated data library,… read more here.
Keywords: methodology; deep neural; achromatic metalens; time ... See more keywords