FIELD: physics.
SUBSTANCE: fluorescence is excited by an electromagnetic field localized near the interface between the sample-containing liquid and the solid phase. As the solid phase, a multilayer structure is used with periodically varying refractive indices of layers, wherein the number, thickness and refractive indices of the layers are selected such that long-range surface waves of, at least, one mode, the wavelength of wich is within the wavelength range providing effective excitation of sample fluorescence.
EFFECT: increasing the contrast of the images obtained and enabling the study of near-surface processes and adsorption.
3 cl, 8 dwg
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