Metasurface-enhanced mid-infrared spectroscopy in the liquid phase.
Metasurface-enhanced mid-infrared spectroscopy in the liquid phase.
复制标题
液相中的超表面增强中红外光谱。
DOI:
10.1039/d2sc03927c
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发表时间:
2022-11-09
期刊:
影响因子:
8.4
通讯作者:
中科院分区:
文献类型:
--
作者:
Vibrational spectroscopy is an important tool in chemical and biological analysis. A key issue when applying vibrational spectroscopy to dilute liquid samples is the inherently low sensitivity caused by short interaction lengths and small extinction coefficients, combined with low target molecule concentrations. Here, we introduce a novel type of surface-enhanced infrared absorption spectroscopy based on the resonance of a dielectric metasurface. We demonstrate that the method is suitable for probing vibrational bands of dilute analytes with a range of spectral linewidths. We observe that the absorption signal is enhanced by 1–2 orders of magnitude and show that this enhancement leads to a lower limit of detection compared to attenuated total reflection (ATR). Overall, the technique provides an important addition to the spectroscopist's toolkit especially for probing dilute samples. A novel surface-enhanced infrared absorption (SEIRA) spectroscopy method exploits the resonance of a dielectric metasurface to provide strong field enhancement at a microscale depth, making it suitable for analysis of dilute liquid samples.
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影响因子:
17.1
作者:
Neubrech, Frank;Beck, Sebastian;Pucci, Annemarie
通讯作者:
Pucci, Annemarie
影响因子:
7
作者:
Conteduca, Donato;Arruda, Guilherme S.;Barth, Isabel;Wang, Yue;Krauss, Thomas F.;Martins, Emiliano R.
通讯作者:
Martins, Emiliano R.
影响因子:
16.6
作者:
Adato, Ronen;Altug, Hatice
通讯作者:
Altug, Hatice
影响因子:
13.6
作者:
Leitis, Aleksandrs;Tittl, Andreas;Altug, Hatice
通讯作者:
Altug, Hatice
DOI:
10.1073/pnas.0907459106
发表时间:
2009-11-17
影响因子:
11.1
作者:
Adato, Ronen;Yanik, Ahmet A.;Altug, Hatice
通讯作者:
Altug, Hatice