INDEX glass slide

For some experiments (surface plasmon resonance), high refractive index glass slides SF10 (Hellma Optic GmbH, Germany) covered by a thin evaporated gold layer with the thickness of approximately 50 nm were used as supports. 

Cleaning of SPR glass slides (optical grade SF2, refractive index 1.65, from UQG Optical Components). Sonicator (e.g., Lucas Dawe sonication bath) and different solutions hydrochloric acid/nitric acid 3 1 v/v (solution A) ammonium cerium nitrate (1M) (solution B) sulfuric acid/hydrogen peroxide 1 1 (Piranha solution) isopropanol. Use caution in handling these solutions harmful and corrosive. 

The medium between the front lens and the coverslip of the glass slide the higher the refractive index of the medium, the higher the resolution. 

SO that a prism-shaped well is formed between the plate of the eyepiece and the glass slide. The instrument has a cord by which it is attached to an electrical outlet. If the push-button on the base of the instrument is pressed, and observation is made through the aperture of the eyepiece, an illuminated scale appears. The graduations on the scale are divided at 1.516 by an arrow. This point corresponds to the refractive index of the glass in the eyepiece. 

The surface of silicon wafers was not hydrophilisized, unlike that of glass slides, and this appeared to affect the film structure, especially in the near substrate region (cf. Fig. 5 and Fig. 7). The values of refractive index from films, especially the older ones, supported on silicon were somewhat lower, an indicative of larger porosity (30-35 %). TTicy fluctuated somewhat with a rise in distance from the substrate (cf. Fig. 8) and even attained a maximum value at some distance fixnn its surface. 

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