High-order spoof localized surface plasmons supported on a complementary metallic spiral structure

Gao, Zhen; Gao, Fei; Zhang, Baile

doi:10.1038/srep24447

Cited by 20 publications

(3 citation statements)

References 22 publications

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“…The combination of an additional resonator with the spiral structure is associated with the electromagnetically induced transparency (EIT) phenomenon [32], which enables excitation of high-Q resonances. In general, there have been many articles on the mechanisms underlying the excitation of spoof localized surface plasmon polaritons and the appearance of EIT on such metasurfaces [18,[32][33][34][35][36][37][38][39][40][41][42].…”

Section: Methodsmentioning

confidence: 99%

Principles of Measuring Thickness and Refractive Index of Thin Dielectric Film by Using Multiresonance Archimedean Spiral Metasurfaces with C Resonator in the Terahertz Frequency Range

Kameshkov,

Gerasimov

2024

Photonics

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Metasurfaces are an excellent platform for terahertz (THz) sensing applications, enabling highly efficient light–matter interaction and overcoming the fundamental disadvantage of the relatively long-wavelength THz range (30–3000 μm), which limits sensing of small features. The current focus in developing metasurfaces is mostly directed toward single-resonance metasurfaces and reconstruction of the dielectric constants of analyte from the saturation mode induced by the limited sensing volume of the metasurface. This paper presents a numerical demonstration of using a multiresonance metasurface to extract the thickness and refractive index of a deposited film without saturation of the sensor. It was shown that the multiresonance property enables determination of the analyte characteristic via measurements with two different thicknesses and tracking changes in two resonances. High-accuracy parameter retrieval is achieved when there are large differences in the thicknesses. In contrast to the established approach, this method provides an efficient way to avoid using relatively thick films.

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Section: Methodsmentioning

confidence: 99%

Principles of Measuring Thickness and Refractive Index of Thin Dielectric Film by Using Multiresonance Archimedean Spiral Metasurfaces with C Resonator in the Terahertz Frequency Range

Kameshkov,

Gerasimov

2024

Photonics

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“…So far, cavity resonators [16], lumped resonators [17] and planar resonators [18] have been used for microwave magnetic field generation at the position of the sample. LSSP modes can be generated on a complementary metallic spiral structure (CMSS) [19], [20]. An LSSP mode supported on a resonator, consisting of a CMSS excited by a microstrip line [13] has been used in this work for detection of ESR.…”

Section: Introductionmentioning

confidence: 99%

Detection of electron spin resonance down to 10 K using localized spoof surface plasmon

Roy,

Nandi,

Das

et al. 2021

Preprint

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In this study, novel use of the electromagnetic field profile of a localized spoof surface plasmonic mode to detect electron spin resonance is being reported. The mode is supported on a resonator with a complementary metallic spiral structure, etched on the ground plane of a microstrip line having a characteristic impedance of 50 Ω. The change in characteristics of the mode of interest with lowering of temperature has been observed and analyzed. Electron spin resonance spectra of a standard paramagnetic sample, 2,2-diphenyl-1-picrylhydrazyl, are recorded using this resonator down to 10 K. Potential application of the mode in the detection of microwave Rashba field-driven electron spin resonance has been discussed.

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“…Previously, LSSP modes have been used for sensing purposes only [23,24]. LSSP modes can be generated on a complementary metallic spiral structure (CMSS) [1,26]. An LSSP mode supported on a resonator consisting of a CMSS excited by a microstrip line [24] has been utilized in this study.…”

Section: Introductionmentioning

confidence: 99%

Detection of electron spin resonance down to 10 K using localized spoof surface plasmon

Roy¹,

Nandi²,

Das³

et al. 2021

J. Phys. D: Appl. Phys.

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In this study, novel use of the electromagnetic field profile of a localized spoof surface plasmonic mode to detect electron spin resonance (ESR) is being reported. The mode is supported on a resonator with a complementary metallic spiral structure, etched on the ground plane of a microstrip line having a characteristic impedance of 50 Ω. The change in characteristics of the mode of interest with lowering of temperature has been observed and analyzed. ESR spectra of three paramagnetic samples—2,2-diphenyl-1-picrylhydrazyl (DPPH), galvinoxyl, and 2,2,6,6-tetramethylpiperidine-1-oxyl are recorded using this resonator at room temperature. ESR spectra of DPPH are also captured down to 10 K. Potential application of the mode in the detection of microwave induced Rashba field-driven ESR has been discussed.

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High-order spoof localized surface plasmons supported on a complementary metallic spiral structure

Cited by 20 publications

References 22 publications

Principles of Measuring Thickness and Refractive Index of Thin Dielectric Film by Using Multiresonance Archimedean Spiral Metasurfaces with C Resonator in the Terahertz Frequency Range

Principles of Measuring Thickness and Refractive Index of Thin Dielectric Film by Using Multiresonance Archimedean Spiral Metasurfaces with C Resonator in the Terahertz Frequency Range

Detection of electron spin resonance down to 10 K using localized spoof surface plasmon

Detection of electron spin resonance down to 10 K using localized spoof surface plasmon

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