Convolutional neural network-assisted design and validation of terahertz metamaterial sensor DOI Creative Commons

Shunrong Chen,

Chunyue Zhao,

Wei Wang

et al.

Materials & Design, Journal Year: 2025, Volume and Issue: unknown, P. 113871 - 113871

Published: March 1, 2025

Language: Английский

Thickness‐Controlled Ti Optical Filters Designed for Tunable Terahertz Technology DOI
A. F. Qasrawi

physica status solidi (b), Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 9, 2025

Herein, titanium (Ti) thin films deposited by a vacuum ion coating technique under high pressure of 10 −5 mbar are designed to perform as optical filters operatives in the terahertz frequency domain. The performance these amorphous is controlled varying filter thickness range 100–500 nm. Increasing decreases transmittance, absorption coefficient, conductivity ( σ ), cutoff f T drift mobility, and free carrier concentration. thickness‐based bulk limit ≈300 On other hand, increase results an dielectric constant. Drude–Lorentz analyses on have shown domination four oscillators with oscillator frequencies 1016, 859, 508, 317 THz. These guarantee good response Ti excitations infrared, visible, UV spectral domains. Based thickness, extremely wide extending from ≈3.8 1248 THz can be achieved. tunability makes them promising for applications.

Language: Английский

Citations

0
Tri-band terahertz polarization reconfigurable reflective metasurface based on liquid crystal DOI
Qi Xie, B. Zhang, Shui Liu

et al.

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(7)

Published: Feb. 17, 2025

Terahertz technology is poised to revolutionize next-generation wireless communication systems, such as 5G-A and 6G, by addressing the growing need for efficient electromagnetic wave modulation in terahertz frequency band. In this study, we present a reflective metasurface comprising dual metal layers tunable liquid crystal medium, designed achieve dynamic linear-to-circular polarization conversion. Experimental results demonstrate conversion across three bands: 248–254, 265–278, 287–292 GHz. Furthermore, left-hand circular (LHCP)-to-right-hand (RHCP) switching achieved at 248–254 GHz, with stable RHCP state observed 265–278 These findings validate device's ability dynamically control states through applied bias voltage. By enabling precise flexible modulation, provides scalable solution reconfigurable intelligent surfaces, paving way advanced systems future networks.

Language: Английский

Citations

0
High-Sensitivity and Multiple Fingerprint Detection at an Exception Point in Electromagnetic Induced Transparent Metasurfaces DOI
Pingsheng Zhang,

Menghan Xiong,

Xingyan Zhao

et al.

Optics Communications, Journal Year: 2025, Volume and Issue: unknown, P. 131699 - 131699

Published: March 1, 2025

Language: Английский

Citations

0
Terahertz molecular vibrational sensing using anapole mode-based meta-biosensor DOI
Chenglin Yang, Zhonglei Shen, Yuqing Cui

et al.

Biosensors and Bioelectronics, Journal Year: 2025, Volume and Issue: 278, P. 117351 - 117351

Published: March 7, 2025

Language: Английский

Citations

0
Convolutional neural network-assisted design and validation of terahertz metamaterial sensor DOI Creative Commons

Shunrong Chen,

Chunyue Zhao,

Wei Wang

et al.

Materials & Design, Journal Year: 2025, Volume and Issue: unknown, P. 113871 - 113871

Published: March 1, 2025

Language: Английский

Citations

0