TY - GEN
T1 - Overcoming Phase-change Materials Limitations with Bending Metasurface
AU - Jalal, Abdul
AU - Hu, Bin
AU - Chen, Yichun
AU - Li, Hui
AU - Li, Nannan
N1 - Publisher Copyright:
© 2025 SPIE.
PY - 2025/12/8
Y1 - 2025/12/8
N2 - Recently, progress has been made in switchable metamaterials (MMs), particularly those that switch between polarization modulator and absorber using phase-change materials like vanadium dioxide (VO2). While VO2-based designs offer excellent tunability, they are hindered by practical limitations such as fabrication complexity due to multilayered geometry, high costs, and thermal sensitivity. Alternative strategies like the mechanical bending of MMs, particularly using laser-induced graphene (LIG), are emerging to address these challenges. Here, we explore how mechanically tune-based MMs offer practical, scalable alternatives to overcome the inherent drawbacks of VO2-based systems. The proposed single-layer metasurface device achieved a polarization conversion efficiency of over 90% in the range of 0.27 THz to 0.41 THz and exhibited circular polarization conversion from 0.48 THz to 0.62 THz. Additionally, the device demonstrated over 80% absorption efficiency when bent into a convex shape.
AB - Recently, progress has been made in switchable metamaterials (MMs), particularly those that switch between polarization modulator and absorber using phase-change materials like vanadium dioxide (VO2). While VO2-based designs offer excellent tunability, they are hindered by practical limitations such as fabrication complexity due to multilayered geometry, high costs, and thermal sensitivity. Alternative strategies like the mechanical bending of MMs, particularly using laser-induced graphene (LIG), are emerging to address these challenges. Here, we explore how mechanically tune-based MMs offer practical, scalable alternatives to overcome the inherent drawbacks of VO2-based systems. The proposed single-layer metasurface device achieved a polarization conversion efficiency of over 90% in the range of 0.27 THz to 0.41 THz and exhibited circular polarization conversion from 0.48 THz to 0.62 THz. Additionally, the device demonstrated over 80% absorption efficiency when bent into a convex shape.
KW - Absorption
KW - Laser-induced graphene
KW - Polarization modulation
KW - Switchable metamaterials
KW - Terahertz waves
UR - https://www.scopus.com/pages/publications/105026492018
U2 - 10.1117/12.3084550
DO - 10.1117/12.3084550
M3 - Conference contribution
AN - SCOPUS:105026492018
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Sixteenth International Conference on Information Optics and Photonics, CIOP 2025
A2 - Yang, Yue
PB - SPIE
T2 - 16th International Conference on Information Optics and Photonics, CIOP 2025
Y2 - 10 August 2025 through 14 August 2025
ER -