Manipulation of polarization conversion and multiplexing via all-silicon phase-modulated metasurfaces

Yue, Zhen Xing; Li, Jitao; Zheng, Chenglong; Li, Jie; Chen, Mingyang; Hao, Xuanruo; Xu, Hang; Wang, Qi; Zhang, Yating; Yao, Jianquan

doi:10.3788/col202220.043601

Cited by 16 publications

(8 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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

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

show abstract

“…Such metasurfaces are characterized by their exceptionally thin metamaterial structures, comprised of planar electromagnetic (EM) microstructures capable of changing the polarization, amplitude, and phase of electromagnetic waves. Research has explored diverse, linearly polarized (LP) converters [3][4][5][6][7] and circularly polarized (CP) converters [8][9][10][11]. There has also been extensively investigated dual-band [12][13][14], multiband [15][16][17][18]and broadband [19][20][21] absorbers.…”

Section: Introductionmentioning

confidence: 99%

Polarization and Incident Angle Independent Multifunctional and Multiband Tunable THz Metasurface Based on VO<sub>2</sub>

Iqbal,

Jie,

Qureshi

et al. 2024

Preprint

View full text Add to dashboard Cite

Aiming at the limitations of single-functionality, limited applicability, and complex designs prevalent in current metasurfaces, we propose a terahertz multifunctional and multiband tunable metasurface utilizing a VO2-metal hybrid structure. This metasurface structure comprises a top VO2-metal resonance layer, a middle polyimide dielectric layer, and a gold film reflective layer at the bottom. This metasurface exhibits multifunctionality, operating independently of polarization and incident angle. The varying conductivity states of the VO2 layers, enable the metasurface to achieve various terahertz functionalities, including single-band absorption, broadband THz absorption, and multiband perfect polarization conversion for linear (LP) and circularly polarized (CP) incident waves. Finally, we believe that the functional adaptability of the proposed metasurface expands the repertoire of options available for future terahertz device designs.

show abstract

“…The burgeoning study of metasurfaces is enabling new capabilities to manipulate the amplitude, phase, and polarization of electromagnetic (EM) waves by judiciously sculpting the shapes and spatial arrangements of subwavelength metaatoms. [1][2][3][4][5] A key application of metasurfaces is the absorption of incident EM waves with high efficiency and flexibility. [6,7] As promising alternatives to traditional absorbing materials, metasurface absorbers (metaabsorbers) play an imperative role in a diverse range of practical applications, including solar photovoltaic conversion, photodetection, stealth technology, and EM compatibility.…”

Section: Introductionmentioning

confidence: 99%

Transparent Bilayer ITO Metasurface with Bidirectional and Coherently Controlled Microwave Absorption

Ge,

Zhang,

Zhang

et al. 2023

Advanced Optical Materials

View full text Add to dashboard Cite

Metasurface absorbers (meta‐absorbers) are highly compelling in modern optoelectronic devices. However, owing to the limitations of the sandwiched design framework, conventional meta‐absorbers are restricted to fully absorbing only one‐sided incident waves while completely reflecting the electromagnetic (EM) waves from the opposite direction. In addition, the existing absorbers are opaque and their absorption performances are fixed after the initial design. Here, an optically transparent meta‐absorber consisting of bilayer indium tin oxide patterned layers that can achieve bidirectional and broadband absorption in the microwave frequency range is demonstrated. The inherent physics of bidirectional absorption can be attributed to the interference between multiple reflections and transmissions of EM waves. Furthermore, it is demonstrated that the absorption properties of the proposed meta‐absorber can be continuously switched via coherent control by adding another microwave beam to the other side of the meta‐absorber and manipulating the phase difference between the two input waves. The results indicate that the proposed design can enrich the functionalities of few‐layer metasurfaces and break new ground for EM shielding optical windows.

show abstract

Manipulation of polarization conversion and multiplexing via all-silicon phase-modulated metasurfaces

Cited by 16 publications

References 24 publications

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

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

Polarization and Incident Angle Independent Multifunctional and Multiband Tunable THz Metasurface Based on VO<sub>2</sub>

Transparent Bilayer ITO Metasurface with Bidirectional and Coherently Controlled Microwave Absorption

Contact Info

Product

Resources

About