Electromagnetic Mechanism of Surface-enhanced Spectroscopy

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A unified view of propagating and localized surface plasmon resonance biosensors (2004, methodology): “Chemosensors and biosensors based on SPR spectroscopy possess many desirable characteristics including: (1) a refractive index sensitivity of the order of one part in 10(5)–10(6), corresponding to an areal mass sensitivity of approximately 10 1 pg mm 2 [78, 81, 96]; (2) a long-range sensing length s”
Nanosphere lithography fabricated plasmonic materials and their applications (2006, background): “Localized surface plasmon resonance (LSPR) results in wavelength-selective absorptions with extremely large molar extinction coefficients (∼10(11) m cm),(12) resonant Rayleigh scattering with efficiency equivalent to that of 10(6) fluorophores,(13) and enhanced local electromagnetic fields near the ”
Surface-enhanced Raman spectroscopy (SERS): progress and trends (2012, background): “The spectral position of the plasmon mode is defined by the plasmon resonance condition [6] and depends on the surrounding D.”
Electrochemical SERS at a structured gold surface (2005, background): “It is generally accepted that there are two contributions to the surface enhancement [11]; a charge transfer (CT) enhancement [12] arising from chemisorption of the adsorbate at the metal surface and an electromagnetic (EM) enhancement [13].”