Universal infrared absorption spectroscopy using uniform electromagnetic enhancement
American Chemical Society
337 - 342
Item Usage Stats
MetadataShow full item record
Infrared absorption spectroscopy has greatly benefited from the electromagnetic field enhancement offered by plasmonic surfaces. However, because of the localized nature of plasmonic fields, such field enhancements are limited to nanometer-scale volumes. Here, we demonstrate that a relatively small, but spatially uniform field enhancement can yield a superior infrared detection performance compared to the plasmonic field enhancement exhibited by optimized infrared nanoantennas. A specifically designed CaF2/Al thin film surface is shown to enable observation of stronger vibrational signals from the probe material, with wider bandwidth and a deeper spatial extent of the field enhancement as compared to such plasmonic surfaces. It is demonstrated that the surface structure presented here can enable chemically specific and label-free detection of organic monolayers using surface-enhanced infrared spectroscopy, indicating a great potential in highly sensitive yet cost-effective biomolecular sensing applications.
Infrared absorption spectroscopy
Surface-enhanced infrared absorption
Electromagnetic field enhancement
Surface-enhanced infrared absorptions
Surface-enhanced infrared spectroscopy
Published Version (Please cite this version)http://dx.doi.org/10.1021/acsphotonics.5b00680
Showing items related by title, author, creator and subject.
An analysis for the broad-band absorption enhancement using plasmonic structures on uncooled infrared detector pixels Lulec, S. Z.; Kucuk, S. E.; Battal, E.; Okyay, A. K.; Tanrikulu, M. Y.; Akin, T. (SPIE, 2012)This paper introduces an analysis on the absorption enhancement in uncooled infrared pixels using resonant plasmon modes in metal structures, and it reports, for the first time in literature, broad-band absorption enhancement ...
Hybridization of fano and vibrational resonances in surface-enhanced infrared absorption spectroscopy of streptavidin monolayers on metamaterial substrates Alici, K. B. (2014)We present spectral hybridization of organic and inorganic resonant materials and related bio-sensing mechanism. We utilized a bound protein (streptavidin) and a Fano-resonant metasurface to illustrate the concept. The ...
Spectroscopic investigation of onset and enhancement of electrical conductivity in PVC/PANI composites and blends by γ-ray or UV irradiation Sevil, U. A.; Güven, O.; Süzer, S. (American Chemical Society, 1998)Electrical conductivity of blends and composites of poly(vinyl chloride) (PVC) with nonconducting polyaniline (PANI) increases when they are subjected to γ-rays or UV radiation. This is attributed to a radiation-induced ...