Metamaterial terahertz device with temperature regulation function that can achieve perfect absorption and complete reflection conversion of ultrawideband DOI
Hao Sun, Zao Yi,

Can Ma

et al.

Communications in Theoretical Physics, Journal Year: 2024, Volume and Issue: 76(7), P. 075701 - 075701

Published: April 7, 2024

Abstract The field of terahertz devices is important in technology. However, most the current have limited functionality and poor performance. To improve device performance achieve multifunctionality, we designed a based on combination VO 2 metamaterials. This can be tuned using phase-transition characteristics , which included triple-layer structure device, along with SiO Au. exhibits various advantageous features, including broadband coverage, high absorption capability, dynamic tunability, simple structural design, polarization insensitivity, incident-angle insensitivity. simulation results showed that by controlling temperature, achieved thermal modulation range spectral from 0 to 0.99. At 313 K, exhibited complete reflection waves. As temperature increased, rate also increased. When reached 353 exceeded 97.7% 5–8.55 THz. study used effective medium theory elucidate correlation between conductivity during phase transition . Simultaneously, variation was further elucidated analyzing depicting intensity distribution electric surface at different temperatures. Furthermore, impact parameters examined, offering valuable insights suggestions for selecting suitable parameter values real-world applications. These render highly promising applications stealth technology, energy harvesting, modulation, other related fields, thus showcasing its significant potential.

Language: Английский

Tunable VO2 metasurface for reflective terahertz linear and circular polarization wavefront manipulation at two frequencies independently DOI

HE Yi-qing,

Bin Cai, Ling Wu

et al.

Physica B Condensed Matter, Journal Year: 2024, Volume and Issue: 681, P. 415848 - 415848

Published: March 15, 2024

Language: Английский

Citations

41
Ultra-broadband plasmonic perfect metamaterial absorber based on all-dielectric triple-vertical-ring nanostructure MXene for full-spectrum solar energy DOI
Ling Wu,

Lingling Yang,

Bin Cai

et al.

Physica B Condensed Matter, Journal Year: 2025, Volume and Issue: unknown, P. 417205 - 417205

Published: April 1, 2025

Language: Английский

Citations

2
Dual-band terahertz reflective-mode metasurface for the wavefront manipulation of independent linear and circular polarization waves DOI
Yongzhi Cheng,

Chenguang Rong,

Jun Li

et al.

Journal of the Optical Society of America B, Journal Year: 2023, Volume and Issue: 41(2), P. 341 - 341

Published: Dec. 15, 2023

Metasurfaces (MSs) are being extensively researched owing to their ability modulate the polarization and wavefront of electromagnetic (EM) waves in a flexible manner, which usually offer significant advantages including ultra-thinness, low losses, easy fabrication. However, conventional MSs typically operate well only with single polarization. Here, we propose novel design strategy for terahertz (THz) reflective-mode MS that relies on unit-cell arrangement combining propagation phase geometric phase. Our designed can achieve multiple manipulations reflection mode, not limited circular (CP) transformation, but also enabling linear (LP) conversion. The consists periodic array bilayered metal patterned resonator structures sandwiched by dielectric substrate. metallic is made outer single-split-ring (SSR) C-shaped slot (CSS), inner double-split-ring (DSR), its complementary structure. With this design, capable converting LP wave orthogonal counterpart at lower frequency ( f 1 =0.7THz) after reflection. Additionally, higher 2 =1.4THz), proposed convert right-handed CP (RCP) left-handed (LCP) upon or vice versa. π full coverage be achieved independently simultaneously adjusting opening orientation angles SSR based phase, angle DSR We numerically demonstrate beam deflection, planar focusing, vortex both reflected three representative provide proof concept. These findings reveal great potential multifunctional devices dual-polarization imaging communication systems.

Language: Английский

Citations

29
Efficiency tunable terahertz graphene metasurfaces for reflective single/dual-focusing effects based on Pancharatnam-Berry phase DOI Creative Commons
Wenzhi Yang, Lingling Yang, Bin Cai

et al.

Results in Physics, Journal Year: 2024, Volume and Issue: unknown, P. 108003 - 108003

Published: Oct. 1, 2024

Language: Английский

Citations

13
Recent Advances in Terahertz Manipulations Using C‐Shape‐Split‐Ring‐Resonator Metasurfaces (Review) DOI
Xiaoyuan Hao, Yupeng Chen,

Mai Liu

et al.

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 20, 2024

Abstract Metasurfaces have garnered significant interest owing to their inherent advantages over traditional optical components in manipulating electromagnetic waves unconventionally. Among the fundamental building blocks of metasurfaces, C‐shaped‐split‐ring resonators (CSRRs) emerged as a highly promising option, enabling strong resonances and precise control various characteristics waves, such phase, amplitude, polarization. This review aims showcase recent advancements CSRR metasurfaces for THz particularly focusing on both passive active methods employed controlling using single‐layer multi‐layer metasurfaces. Moreover, this will provide valuable insights into potential research directions rapidly evolving field.

Language: Английский

Citations

8
Composite control of wavelength and polarization of a metalens based on double-layer geometric phase DOI
Deli Chen,

Haini Zeng,

Quanzhen Huang

et al.

Physics Letters A, Journal Year: 2025, Volume and Issue: unknown, P. 130283 - 130283

Published: Jan. 1, 2025

Language: Английский

Citations

0
Optically Transparent Conformal Reflectarray with Multi‐Angle Microwave Efficient Scattering Enhancement DOI
Chenxi Fan, Wenbo Zhao, Ke Chen

et al.

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(18)

Published: March 6, 2024

Abstract Optically transparent electromagnetic devices play a key role in modern society. Traditional face the problems of high return loss, low optical transparency, and dependence on properties conductive materials. Due to limitation substrate, there are few studies conformal reflectarray. However, for targets such as aircraft, it is particularly important fabricate Here, an optically reflectarray with multi‐angle scattering enhancement performance proposed. ITO square ring patch selected realize wide phase coverage loss array achieved by traversing initial phase. By partitioning distribution reflectarray, 0° normal incidence efficient backscattering ±45° functions realized X‐band. Both simulation experimental results verify effectiveness proposed prototype. The has reflection efficiency, excellent stable performance, easy manufacture. Therefore, expected be applied shapes aircraft friendly targets, then improve efficiency target echo detection from multiple angles complex situations.

Language: Английский

Citations

3
Quad-band bidirectional metasurface microwave absorber with a patchwork of circular-patch resonators DOI

Qi Lv,

Yuhua Chen,

Songlin Yu

et al.

Materials Today Communications, Journal Year: 2024, Volume and Issue: 38, P. 108336 - 108336

Published: Feb. 13, 2024

Language: Английский

Citations

2
Metasurface-based wide-angle reflective metalens with consistently constant focusing efficiency DOI

Weizhu Chen,

Yufei Liu, Cuiling Zhang

et al.

Infrared Physics & Technology, Journal Year: 2024, Volume and Issue: 139, P. 105341 - 105341

Published: May 6, 2024

Language: Английский

Citations

1
Metamaterial terahertz device with temperature regulation function that can achieve perfect absorption and complete reflection conversion of ultrawideband DOI
Hao Sun, Zao Yi,

Can Ma

et al.

Communications in Theoretical Physics, Journal Year: 2024, Volume and Issue: 76(7), P. 075701 - 075701

Published: April 7, 2024

Abstract The field of terahertz devices is important in technology. However, most the current have limited functionality and poor performance. To improve device performance achieve multifunctionality, we designed a based on combination VO 2 metamaterials. This can be tuned using phase-transition characteristics , which included triple-layer structure device, along with SiO Au. exhibits various advantageous features, including broadband coverage, high absorption capability, dynamic tunability, simple structural design, polarization insensitivity, incident-angle insensitivity. simulation results showed that by controlling temperature, achieved thermal modulation range spectral from 0 to 0.99. At 313 K, exhibited complete reflection waves. As temperature increased, rate also increased. When reached 353 exceeded 97.7% 5–8.55 THz. study used effective medium theory elucidate correlation between conductivity during phase transition . Simultaneously, variation was further elucidated analyzing depicting intensity distribution electric surface at different temperatures. Furthermore, impact parameters examined, offering valuable insights suggestions for selecting suitable parameter values real-world applications. These render highly promising applications stealth technology, energy harvesting, modulation, other related fields, thus showcasing its significant potential.

Language: Английский

Citations

0