A method for the determination of surface plasmons resonances surfaces to two-dimensional measuring surfaces

摘要

A method for the determination of surface plasmons resonances surfaces to two-dimensional measuring surfaces, in which the measuring surface formed by a thin metal film with a sample to be measured is brought into contact, is illuminated and the intensity distribution in the reflected beam is measured, is intended to be further developed such that it substantially (mess -) is more sensitive and resistant against disturbances.This is achieved in that the measuring surface with two collimated, monochromatic laser beams of different wavelengths, the spatially in a full jet be combined, is illuminated, and the difference between the reflecting intensities for the characterization of the plasmon resonance is measured.