Multifunctional magneto-metasurface for terahertz one-way transmission and magnetic field sensing

Sai Chen; Fei Fan; Xiaotong He; Meng Chen; Shengjiang Chang

doi:10.1364/AO.54.009177

Multifunctional magneto-metasurface for terahertz one-way transmission and magnetic field sensing

Sai Chen
, Fei Fan^*
, Xiaotong He
, Meng Chen
, Shengjiang Chang

^*Corresponding author for this work

Nankai University
Cooperative Innovation Centre of Terahertz Science
North China Research Institute of Electro-Optics

Research output: Contribution to journal › Article › peer-review

41 Scopus citations

Abstract

A magneto-metasurface is demonstrated for one-way transmission of terahertz (THz) waves and magnetic field sensing. Due to the magneto-optical effect and the asymmetric structure of the transmission system, magnetoplasmon mode splitting for forward and backward THz waves and one-way transmission has been observed in this magneto-metasurface. Significantly, the resonance of the magneto-metasurface has been found that can remain at 0.750 THz at a temperature of 218 K, performing as a stable isolator with an isolation of larger than 30 dB within a magnetic field disturbance from 0.23 to 0.35 T. Also, since the resonance of the magneto-metasurface can be tuned by the different external magnetic fields at a temperature that is higher or lower than 218 K, the magnetometasurface can work as a highly sensitive magnetic field sensor. The sensitivity of this device reaches S = 513.05 GHz · T -1 when T = 230 K. This multifunctional magneto-metasurface has broad potential in THz application systems.

Original language	English
Pages (from-to)	9177-9182
Number of pages	6
Journal	Applied Optics
Volume	54
Issue number	31
DOIs	https://doi.org/10.1364/AO.54.009177
State	Published - 1 Nov 2015
Externally published	Yes

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10.1364/AO.54.009177

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title = "Multifunctional magneto-metasurface for terahertz one-way transmission and magnetic field sensing",

abstract = "A magneto-metasurface is demonstrated for one-way transmission of terahertz (THz) waves and magnetic field sensing. Due to the magneto-optical effect and the asymmetric structure of the transmission system, magnetoplasmon mode splitting for forward and backward THz waves and one-way transmission has been observed in this magneto-metasurface. Significantly, the resonance of the magneto-metasurface has been found that can remain at 0.750 THz at a temperature of 218 K, performing as a stable isolator with an isolation of larger than 30 dB within a magnetic field disturbance from 0.23 to 0.35 T. Also, since the resonance of the magneto-metasurface can be tuned by the different external magnetic fields at a temperature that is higher or lower than 218 K, the magnetometasurface can work as a highly sensitive magnetic field sensor. The sensitivity of this device reaches S = 513.05 GHz · T -1 when T = 230 K. This multifunctional magneto-metasurface has broad potential in THz application systems.",

author = "Sai Chen and Fei Fan and Xiaotong He and Meng Chen and Shengjiang Chang",

note = "Publisher Copyright: {\textcopyright} 2015 Optical Society of America.",

year = "2015",

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doi = "10.1364/AO.54.009177",

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T1 - Multifunctional magneto-metasurface for terahertz one-way transmission and magnetic field sensing

AU - Chen, Sai

AU - Fan, Fei

AU - He, Xiaotong

AU - Chen, Meng

AU - Chang, Shengjiang

PY - 2015/11/1

Y1 - 2015/11/1

N2 - A magneto-metasurface is demonstrated for one-way transmission of terahertz (THz) waves and magnetic field sensing. Due to the magneto-optical effect and the asymmetric structure of the transmission system, magnetoplasmon mode splitting for forward and backward THz waves and one-way transmission has been observed in this magneto-metasurface. Significantly, the resonance of the magneto-metasurface has been found that can remain at 0.750 THz at a temperature of 218 K, performing as a stable isolator with an isolation of larger than 30 dB within a magnetic field disturbance from 0.23 to 0.35 T. Also, since the resonance of the magneto-metasurface can be tuned by the different external magnetic fields at a temperature that is higher or lower than 218 K, the magnetometasurface can work as a highly sensitive magnetic field sensor. The sensitivity of this device reaches S = 513.05 GHz · T -1 when T = 230 K. This multifunctional magneto-metasurface has broad potential in THz application systems.

AB - A magneto-metasurface is demonstrated for one-way transmission of terahertz (THz) waves and magnetic field sensing. Due to the magneto-optical effect and the asymmetric structure of the transmission system, magnetoplasmon mode splitting for forward and backward THz waves and one-way transmission has been observed in this magneto-metasurface. Significantly, the resonance of the magneto-metasurface has been found that can remain at 0.750 THz at a temperature of 218 K, performing as a stable isolator with an isolation of larger than 30 dB within a magnetic field disturbance from 0.23 to 0.35 T. Also, since the resonance of the magneto-metasurface can be tuned by the different external magnetic fields at a temperature that is higher or lower than 218 K, the magnetometasurface can work as a highly sensitive magnetic field sensor. The sensitivity of this device reaches S = 513.05 GHz · T -1 when T = 230 K. This multifunctional magneto-metasurface has broad potential in THz application systems.

UR - https://www.scopus.com/pages/publications/84964662055

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DO - 10.1364/AO.54.009177

M3 - 文章

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SN - 1559-128X

VL - 54

SP - 9177

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JO - Applied Optics

JF - Applied Optics

IS - 31

ER -

Multifunctional magneto-metasurface for terahertz one-way transmission and magnetic field sensing

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