Super-reflector enabled by non-interleaved spin-momentum-multiplexed metasurface

Xu, Haojun; Hu, Guangwei; Kong, Xiangying; Shao, Yanzhang; Genevet, Patrice; Qiu, Cheng‐Wei

doi:10.1038/s41377-023-01118-1

Cited by 30 publications

(5 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Polarization manipulation in metasurfaces is also an important topic [97][98][99][100] . More importantly, there has been a substantial increase in interest in polarization multiplexing metasurfaces [101][102][103][104][105] . Typically, these metasurfaces are designed to impart unique intensities and/or phases on orthogonal linear or circular polarization, as interference effects typically occur with two polarized waves that are not orthogonal to each other.…”

Section: Polarization/oam/vector Fields With Metasurfaces 241 Polariz...mentioning

confidence: 99%

Diffractive optical elements 75 years on: from micro-optics to metasurfaces

Zhang,

He,

Xie

et al. 2023

Photonics Insights

View full text Add to dashboard Cite

Diffractive optical elements (DOEs) are intricately designed devices with the purpose of manipulating light fields by precisely modifying their wavefronts. The concept of DOEs has its origins dating back to 1948 when D. Gabor first introduced holography. Subsequently, researchers introduced binary optical elements (BOEs), including computer-generated holograms (CGHs), as a distinct category within the realm of DOEs. This was the first revolution in optical devices. The next major breakthrough in light field manipulation occurred during the early 21st century, marked by the advent of metamaterials and metasurfaces. Metasurfaces are particularly appealing due to their ultra-thin, ultra-compact properties and their capacity to exert precise control over virtually every aspect of light fields, including amplitude, phase, polarization, wavelength/frequency, angular momentum, etc. The advancement of light field manipulation with micro/nano-structures has also enabled various applications in fields such as information acquisition, transmission, storage, processing, and display. In this review, we cover the fundamental science, cuttingedge technologies, and wide-ranging applications associated with micro/nano-scale optical devices for regulating light fields. We also delve into the prevailing challenges in the pursuit of developing viable technology for real-world applications. Furthermore, we offer insights into potential future research trends and directions within the realm of light field manipulation.

show abstract

Section: Polarization/oam/vector Fields With Metasurfaces 241 Polariz...mentioning

confidence: 99%

Diffractive optical elements 75 years on: from micro-optics to metasurfaces

Zhang,

He,

Xie

et al. 2023

Photonics Insights

View full text Add to dashboard Cite

show abstract

“…The main purpose of this innovative method is to generate co-and crosspolarized circularly polarized (CP) light with different intensities and phases under CP light excitation. This method has already been successfully used to design multifunctional metadevices, including multichannel vortex light generators [29,30], dual-function waveplates [31], and multichannel polarization conversion devices [32][33][34]. Nonetheless, to the best of our knowledge, there have been no reports on the use of the aforementioned method for achieving intensity-controllable beam splitting and polarization conversion.…”

Section: Introductionmentioning

confidence: 99%

All-dielectric metasurfaces for intensity-controllable beam splitting and polarization conversion

Wang,

Zhang

et al. 2024

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

Beam splitters and polarization converters of electromagnetic waves based on metasurfaces have been extensively studied. However, there are few reports on the ability to arbitrarily control the intensity ratio between different diffraction orders while achieving beam splitting and polarization conversion. In this paper, we propose a method to achieve polarization conversion and beam splitting with varying intensities by manipulating the superposition of the output orthogonal circularly polarized (OCP) light. Specifically, polarized light with certain intensities and phase distributions in multiple channels can be decomposed into the superposition of OCP light with varying amplitudes and phases. Under the excitation of circularly polarized (CP) light, the amplitudes and phases of the output OCP light can be manipulated by adjusting the size and rotation angle of the nanopillar within the meta-atom. We show three metasurfaces capable of converting CP light into OCP and linearly polarized light in dual channels, with the ability to vary the intensity ratios of these polarized lights. Simulations demonstrate that the diffraction efficiencies of the desired diffraction orders of three metasurfaces exceed 90%. This method provides a novel concept for the design of multifunctional meta-devices.

show abstract

“…Among these approaches is the utilization of MSs which have shown great efficacy in producing and enhancing CP radiation. As a result, numerous antennas incorporating MSs have been created and successfully demonstrated wideband CP capabilities [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 ]. However, these uniform MS designs are limited in their ability to effectively enhance bandwidth and improve gain, which results in narrow applicability.…”

Section: Introductionmentioning

confidence: 99%

Wideband Circularly Polarization and High-Gain of a Slot Patch Array Antenna Realized by a Hybrid Metasurface

Chen,

Yang,

et al. 2024

Sensors

View full text Add to dashboard Cite

In this paper, a patch array antenna with wideband circular polarization and high gain is proposed by utilizing a hybrid metasurface (MS). A corner-cut slotted patch antenna was chosen as the source due to the possible generation of CP mode. The hybrid MS (HMS), consisting of a receiver MS (RMS) arranged in a 2 × 2 array of squared patches and a linear-to-circular polarization conversion (LCPC) MS surrounding it was then utilized as the superstrate driven by the source. The LCPC MS cell is a squared-corner-cut patch with a 45° oblique slot etched, which has the capability for wideband LCPC. The LCPC unit cell possesses wideband PC capabilities, as demonstrated by the surface current analysis and S-parameter simulations conducted using a Floquet–port setup. The LP EM wave radiated by the source antenna was initially received by the RMS, then converted to a CP wave as it passed through the LCPC MS, and ultimately propagated into space. To further enhance the LCPC properties, an improved HMS (IHMS) was then proposed with four cells cut at the corners, based on the original HMS design. To verify this design, both CMA and E-field were utilized to analyze the three MSs, indicating that the IHMS possessed a wideband LCPC capability compared to the other two MSs. The proposed antenna was then arranged in a 2 × 2 array with sequential rotation to further enhance its properties. As demonstrated by the measurements, the array antenna achieved an S11 bandwidth of 60.5%, a 3 dB AR bandwidth of 2.85 GHz, and a peak gain of 15.1 dBic, all while maintaining a low profile of only 0.09λ0.

show abstract

Super-reflector enabled by non-interleaved spin-momentum-multiplexed metasurface

Cited by 30 publications

References 50 publications

Diffractive optical elements 75 years on: from micro-optics to metasurfaces

Diffractive optical elements 75 years on: from micro-optics to metasurfaces

All-dielectric metasurfaces for intensity-controllable beam splitting and polarization conversion

Wideband Circularly Polarization and High-Gain of a Slot Patch Array Antenna Realized by a Hybrid Metasurface

Contact Info

Product

Resources

About