Probing of sub-picometer vertical differential resolutions using cavity plasmons.
Probing of sub-picometer vertical differential resolutions using cavity plasmons.
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使用腔等离子体探测亚皮米垂直差分分辨率
DOI:
10.1038/s41467-018-03227-7
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发表时间:
2018-02-23
影响因子:
16.6
通讯作者:
Xu H
中科院分区:
文献类型:
--
作者:
Chen W;Zhang S;Deng Q;Xu H
Plasmon rulers can be used for resolving ultrasmall environmental, dimensional, and material changes owing to their high sensitivity associated with a light-scattering spectral shift in response to changes in the separation between plasmonic nanostructures. Here, we show, in several experimental setups, how cavity plasmons in a metal nanowire-on-mirror setup can be used to probe vertical dimensional changes with sub-picometer differential resolutions using two carefully chosen material systems. Specifically, we monitor the dielectric layer thickness changes in response to growth using atomic-layer deposition and to thermal expansion, demonstrating a sensitivity of 14-nm spectral shift per Ångström thickness change and 0.58 pm of vertical differential resolution, respectively. The findings confirm theoretical predictions and highlight the potential use of cavity plasmons in some ultrasensitive sensing applications.
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影响因子:
10.8
作者:
Chen T;Hong Y;Reinhard BM
通讯作者:
Reinhard BM
影响因子:
10.8
作者:
Jain, Prashant K.;Huang, Wenyu;El-Sayed, Mostafa A.
通讯作者:
El-Sayed, Mostafa A.
影响因子:
7
作者:
Esteban, Ruben;Aguirregabiria, Garikoitz;Aizpurua, Javier
通讯作者:
Aizpurua, Javier
影响因子:
2.4
作者:
Forrest, JA;DalnokiVeress, K;Dutcher, JR
通讯作者:
Dutcher, JR
影响因子:
2.9
作者:
Tserkezis, C.;Esteban, R.;Aizpurua, J.
通讯作者:
Aizpurua, J.