Fluorescence Spectroscopy with Surface Plasmon Excitation
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In recent years, much effort has been directed towards the development of optical biosensors. While direct sensors are capable of monitoring the presence of an analyte without the use of labelling groups, the class of indirect sensors exploits the signal enhancement caused by bound marker molecules. Surface plasmon spectroscopy (SPS) as a direct detection method  is known to lack sensitivity for monitoring of low molecular mass analytes. In order to enhance the sensitivity and to improve the detection limit the technique was combined with fluorescence detection schemes in surface plasmon fluorescence spectroscopy (SPFS), as described recently . Here, we briefly review the theory of plasmon excitation and the experimental realization of SPFS.
KeywordsDispersion Relation Dielectric Medium Plasmon Excitation Resonance Angle Surface Plasmon Mode
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