Metasurface-based broadband polarization-insensitive polarization rotator

Liu, Wei; Zhang, Lei; Ke, Junchen; Liang, Ji; Xiao, Cong; Cheng, Qiang; Cui, Tiejun

doi:10.1364/oe.471970

Cited by 11 publications

(3 citation statements)

References 33 publications

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“…In terms of polarization manipulation, to date, a multitude of polarization conversion functions have been proposed. [9][10][11][12][13][14][15][16][17] However, achieving wideband reconfigurability between co-polarized and cross-polarized reflected waves is still critical for the practical applications. Numerous researchers have devoted tremendous efforts toward achieving this function.…”

Section: Introductionmentioning

confidence: 99%

Wideband Polarization‐Insensitive 1‐Bit Phase Manipulations with Co‐and Cross‐Polarized Conversions for LP and CP Waves

Liu,

Dai,

Zhang

et al. 2024

Laser & Photonics Reviews

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Polarization and phase manipulations have gained widespread applications across various fields. The emergence of metasurface provides a new platform for the manipulation of electromagnetic waves. However, most metasurfaces are limited to modulating only one single property. Here, a coding metasurface that achieves 1‐bit phase manipulations of both co‐polarized and cross‐polarized reflected waves for linear and circular polarization wave excitations. Notably, the proposed metasurface enables co‐polarized 1‐bit phase responses for incident electric fields with arbitrary orientations and spin directions. The simulated results demonstrate an operating efficiency over −1.7 dB in the frequency range from 7 to 11.1 GHz, with a relative bandwidth of 45.3%. Furthermore, the introduction of space‐polarization coding strategies facilitates the beam and polarization manipulations. To verify the feasibility of the coding metasurface, a sample and conduct experiments are fabricated, revealing good agreement between the simulations and measurements. These findings hold significant promise for the advancement of radar, imaging, and wireless communication systems, with potential applications in various domains.

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Section: Introductionmentioning

confidence: 99%

Wideband Polarization‐Insensitive 1‐Bit Phase Manipulations with Co‐and Cross‐Polarized Conversions for LP and CP Waves

Liu,

Dai,

Zhang

et al. 2024

Laser & Photonics Reviews

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“…In Ref. [ 8 ] , a 90° polarization rotator was proposed to immune the polarization direction of the LP waves. However, it can neither rotate the polarization direction of the LP waves to arbitrary azimuth nor achieve cross‐polarization conversion for the CP waves.…”

Section: Introductionmentioning

confidence: 99%

“…To date, a wide variety of polarization conversion functions have been studied and implemented, such as linear-to-linear, [7,8] circular-to-circular, [9,10] and linear-to-circular. [11] However, most of them have the fixed and nonadjustable capabilities, while many applications require arbitrary rotations of the linearly polarized (LP) directions in practice, such as the channel capacity enhancement and the transmission distance extension in wireless communication systems.…”

mentioning

confidence: 99%

Manipulation of Arbitrary Polarizations and Phases Based on Metasurfaces

Liu

Zhang

et al. 2023

Advanced Optical Materials

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Polarization and phase are two essential properties of electromagnetic (EM) waves. A transmissive metasurface is proposed that can simultaneously manipulate the polarization and phase of the EM waves. The design has a powerful capability of rotating the polarization to any desired azimuth direction for a linearly polarized (LP) wave and achieving the cross‐polarization conversion for a circularly polarized (CP) wave. Meanwhile, the transmission phase of the cross‐polarization can be dynamically controlled for the CP wave. The proposed metasurface is composed of two types of substrate‐integrated waveguides (SIW) in a cross arrangement, which has an insertion loss of less than 0.3 dB from 9.7 to 10.3 GHz. Some samples are fabricated and measurements are performed, which are in satisfactory agreement with the theoretical and simulated results, indicating the feasibility of the proposed method. It is believed that the proposed design has many potential applications in the fields of imaging, communication, and radar systems.

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Arbitrarily rotating polarization direction and manipulating phases in linear and nonlinear ways using programmable metasurface

Liu,

Wang,

Dai

et al. 2024

Light Sci Appl

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Independent controls of various properties of electromagnetic (EM) waves are crucially required in a wide range of applications. Programmable metasurface is a promising candidate to provide an advanced platform for manipulating EM waves. Here, we propose an approach that can arbitrarily control the polarization direction and phases of reflected waves in linear and nonlinear ways using a stacked programmable metasurface. Further, we extend the space-time-coding theory to incorporate the dimension of polarization, which provides an extra degree of freedom for manipulating EM waves. As proof-of-principle application examples, we consider polarization rotation, phase manipulation, and beam steering at linear and nonlinear frequencies. For validation, we design, fabricate, and measure a metasurface sample. The experimental results show good agreement with theoretical predictions and simulations. The proposed approach has a wide range of applications in various areas, such as imaging, data storage, and wireless communication.

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Metasurface-based broadband polarization-insensitive polarization rotator

Cited by 11 publications

References 33 publications

Wideband Polarization‐Insensitive 1‐Bit Phase Manipulations with Co‐and Cross‐Polarized Conversions for LP and CP Waves

Wideband Polarization‐Insensitive 1‐Bit Phase Manipulations with Co‐and Cross‐Polarized Conversions for LP and CP Waves

Manipulation of Arbitrary Polarizations and Phases Based on Metasurfaces

Arbitrarily rotating polarization direction and manipulating phases in linear and nonlinear ways using programmable metasurface

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