Composite phase modulation beam steering controllable reflective metasurface DOI Open Access
Tao Wei, Yujie Zhang, Hongyi Ge

et al.

Acta Physica Sinica, Journal Year: 2024, Volume and Issue: 73(22), P. 224201 - 224201

Published: Jan. 1, 2024

Terahertz metasurface functional devices as an effective method to control terahertz waves have attracted extensive attention from researchers. In order enhance the functionality and flexibility of adapt diverse application scenarios demands, a beam-steering controllable reflective is designed by combining Pancharatnam-Berry phase principle change material vanadium dioxide in this work. The unit consists five layers, they being top layer that metal patterned layer, third made located between dielectric layers with different thickness, polytetrafluoroethylene (PTFE), bottom serves layer. units are rotated based on obtain four fixed differences between, after which arranged two dimensions generalized Snell reflection law desired phase-gradient deflected beam. insulating state-metallic state transition can gradient preset metasurface, thereby realizing on/off function deflection. simulation results show when state, appears, deflect vertically incident circularly polarized wave specific angle anomalies operating band 1.1–2.0 THz; metallic for same disappears, mirror reflects waves, switching. This design provides new possibilities modulating reflected beam, will potential applications wireless communication radar systems.

Language: Английский

Recent advances in graphene-based materials for radar and infrared stealth application DOI
Yajing Wang, Xiuchen Wang,

Miaomiao Kang

et al.

Composites Part A Applied Science and Manufacturing, Journal Year: 2025, Volume and Issue: 192, P. 108807 - 108807

Published: Feb. 15, 2025

Language: Английский

Citations

0
Metasurface based on VO2-Ge2Sb2Te5 with multi-modes: cross-polarization conversion, reversible linear dichroism and absorption DOI
Xinhui Lu, Lei Yang, Wen Yu Peng

et al.

Optics Communications, Journal Year: 2025, Volume and Issue: unknown, P. 131895 - 131895

Published: April 1, 2025

Language: Английский

Citations

0
Tunable dual-functional metasurface based on Ge2Sb2Te5 and VO2 DOI
Xinhui Lu, Lei Yang, Xiaohui Yang

et al.

Optics Communications, Journal Year: 2024, Volume and Issue: unknown, P. 131431 - 131431

Published: Dec. 1, 2024

Language: Английский

Citations

1
Single layer vanadium oxide assisted switchable metasurfaces for transmissive and reflective polarization conversion DOI
Nguyễn Thị Hòa, Nguyễn Thị Minh Phương, Nguyen Hong Quang

et al.

Physica Scripta, Journal Year: 2024, Volume and Issue: 99(11), P. 115534 - 115534

Published: Oct. 10, 2024

Abstract Polarization control using metasurfaces is highly advantageous; however, most operate exclusively in either transmission or reflection mode. Additionally, achieving both wide bandwidth and high efficiency simultaneously their design remains a significant challenge. Here, we high-efficiency wideband switchable metasurface that can switch between transmissive reflective polarization conversion modes by utilizing single layer of I-shaped resonators gold-vanadium dioxide (VO 2 ) alternating gratings printed on quartz substrate. When VO transitions to its metallic phase, the continuous metal layers gold-VO eliminate designed operates as cross-polarization converter with ratio (PCR) exceeding 0.9 over broad frequency range 1.4–3.3 THz. Conversely, when insulator THz incoming wave transmit through gratings, behaves PCR above 0.99 0.75-4.0 for forward y - polarized wave. The working mechanism explained theoretical analysis surface current distributions. With advantages facile design, performance, dual functionality, our expected be applied fields imaging, sensing, communication.

Language: Английский

Citations

0
Composite phase modulation beam steering controllable reflective metasurface DOI Open Access
Tao Wei, Yujie Zhang, Hongyi Ge

et al.

Acta Physica Sinica, Journal Year: 2024, Volume and Issue: 73(22), P. 224201 - 224201

Published: Jan. 1, 2024

Terahertz metasurface functional devices as an effective method to control terahertz waves have attracted extensive attention from researchers. In order enhance the functionality and flexibility of adapt diverse application scenarios demands, a beam-steering controllable reflective is designed by combining Pancharatnam-Berry phase principle change material vanadium dioxide in this work. The unit consists five layers, they being top layer that metal patterned layer, third made located between dielectric layers with different thickness, polytetrafluoroethylene (PTFE), bottom serves layer. units are rotated based on obtain four fixed differences between, after which arranged two dimensions generalized Snell reflection law desired phase-gradient deflected beam. insulating state-metallic state transition can gradient preset metasurface, thereby realizing on/off function deflection. simulation results show when state, appears, deflect vertically incident circularly polarized wave specific angle anomalies operating band 1.1–2.0 THz; metallic for same disappears, mirror reflects waves, switching. This design provides new possibilities modulating reflected beam, will potential applications wireless communication radar systems.

Language: Английский

Citations

0