Stable, high-performance sodium-based plasmonic devices in the near infrared

Wang, Yang; Yu, Jianyu; Mao, Yifei; Ji, Chen; Wang, Suo; Chen, Huazhou; Zhang, Yi; Wang, Si-Yi; Chen, Xinjie; Li, Tao; Lin, Zhifang; Ma, Ren‐Min; Zhu, Shining; Cai, Wenshan; Zhu, Jing

doi:10.1038/s41586-020-2306-9

Cited by 149 publications

(124 citation statements)

References 45 publications

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“…For state-of-the-art-fabricated plasmonic devices, the reported surface roughness values of Pd and Ag nanostructures are 0.5 nm [ 21 ] and 0.2 nm [ 22 ], respectively. The particle sizes on the metal surfaces can be decreased with several elaborate fabrication techniques, such as the deposition parameter control [ 22 ], template stripping method [ 21 , 23 ], and thermo-assisted spin coating [ 24 ]. With increasing roughness, the Ohmic absorption loss and scattering loss in the metal surfaces increases [ 25 , 26 ].…”

Section: Methodsmentioning

confidence: 99%

Hydrogen Sensor: Detecting Far-Field Scattering of Nano-Blocks (Mg, Ag, and Pd)

Shin

Lee

Nam

et al. 2020

Sensors

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Hydrogen sensor technologies have been rapidly developing. For effective and safe sensing, we proposed a hydrogen sensor composed of magnesium (Mg), silver (Ag), and palladium (Pd) nano-blocks that overcomes the spectral resolution limit. This sensor exploited the properties of Mg and Pd when absorbing hydrogen. Mg became a dielectric material, and the atomic lattice of Pd expanded. These properties led to changes in the plasmonic gap mode between the nano-blocks. Owing to the changing gap mode, the far-field scattering pattern significantly changed with the hydrogen concentration. Thus, sensing the hydrogen concentration was able to be achieved simply by detecting the far-field intensity at a certain angle for incident light with a specific wavelength.

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Section: Methodsmentioning

confidence: 99%

Hydrogen Sensor: Detecting Far-Field Scattering of Nano-Blocks (Mg, Ag, and Pd)

Shin

Lee

Nam

et al. 2020

Sensors

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“…Figure 2e shows that the total EF (|E| 2 ) on the surface of the FP-cavity-engineered NR, which has been enhanced by ~3 times compared to the NR located on the bulk Si3N4 substrate. The merits of the lowered dissipative decays 48,49 and the enhanced plasmonic EFs make the cavity-engineered NRs an ideal platform for implementing the quantum manipulation of light-matter interactions at room temperature. Next, we experimentally demonstrate the suppression of the dissipative decay for the Au@Ag NRs by applying this general strategy.…”

Section: Pseudo-strong Coupling Between Single-exciton and Plasmon Atmentioning

confidence: 99%

Realizing room-temperature strong coupling of single-exciton with plasmons by controlling quantum exceptional point

Li¹,

Liu²,

Li³

et al. 2021

Preprint

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Single-exciton strong coupling with plasmons is highly desirable for exploiting room-temperature quantum devices and applications. However, the large plasmon decay makes the realization of such strong coupling extremely difficult. To overcome this challenge, here we propose an effective approach to easily achieve the single-exciton strong coupling at room temperature by controlling quantum exceptional point (QEP) of the coupling system via matching the decay between the localized plasmon mode (LPM) and exciton. The good match can be reached by suppressing the LPM’s decay with the use of a leaky Fabry-Perot cavity. Experimental results show that the LPM’s decay linewidth is greatly compressed from ~ 45 nm to ~ 15 nm, which is close to the excitonic linewidth (~ 10 nm), pushing their interaction from the Fano interference into the strong coupling. Our work opens a new way to flexibly control the QEP and more easily realize the single-exciton strong coupling in ambient conditions.

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“…[ 12 ] The distinct low optical loss feature of alkali metals has recently been verified in sodium system through systematic demonstration of fundamental optical measurement as well as highly performing plasmonic devices at near‐infrared wavelengths. [ 13 ] Besides, alkali metal including lithium and sodium has also been heavily investigated in the field of energy storage. Lithium metal anodes, as the lightest anode material for lithium‐based batteries, possess the highest specific capacity of 3860 mAh g −1 and the lowest electrochemical potential (−3.04 V vs standard hydrogen electrode) to achieve high energy density.…”

Section: Figurementioning

confidence: 99%

Electrical Dynamic Switching of Magnetic Plasmon Resonance Based on Selective Lithium Deposition

Jin

Liang

et al. 2020

Advanced Materials

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Active plasmonic nanostructures have garnered considerable interest in physics, chemistry, and material science due to the dynamically switchable capability of plasmonic responses. Here, the first electrically dynamic control of magnetic plasmon resonance (MPR) through structure transformation by selective deposition of lithium on a metal–insulator–metal (MIM) structure is reported. Distinct optical switching between MPR and surface plasmon polariton (SPP) excitations can be enabled by applying a proper electrical current to the electrochemical cell. Furthermore, the structure transformation through lithium metal deposition indicates the reconfigurable MPR excitation in a full cycling of the charging and discharging process. The results may shed light on electrically compatible self‐powered active plasmonics as well as nondestructive optical sensing for electrochemical evolution.

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Stable, high-performance sodium-based plasmonic devices in the near infrared

Cited by 149 publications

References 45 publications

Hydrogen Sensor: Detecting Far-Field Scattering of Nano-Blocks (Mg, Ag, and Pd)

Hydrogen Sensor: Detecting Far-Field Scattering of Nano-Blocks (Mg, Ag, and Pd)

Realizing room-temperature strong coupling of single-exciton with plasmons by controlling quantum exceptional point

Electrical Dynamic Switching of Magnetic Plasmon Resonance Based on Selective Lithium Deposition

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