Metasurface-enhanced mid-infrared spectroscopy in the liquid phase

8Citations
Citations of this article
12Readers
Mendeley users who have this article in their library.

Abstract

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.

Cite

CITATION STYLE

APA

Kharratian, S., Conteduca, D., Procacci, B., Shaw, D. J., Hunt, N. T., & Krauss, T. F. (2022). Metasurface-enhanced mid-infrared spectroscopy in the liquid phase. Chemical Science, 114. https://doi.org/10.1039/d2sc03927c

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free