Light p-polarized

Figure Bl.26.12. Plot of the reflectivity of s- and p-polarized light from a material with refractive index n = 3. (C) REFLECTION AT MULTIPLE INTERFACES...

Fig. 4.55. Experimental and calculated (dashed line) RAIR-spectra for poly(methyl methacrylate) films 3270 + 100 nm, 362 30 nm, and 78 + 15 nm thick (a) p-polarized light incident at 60° (b) s-polarized light incident at 60°, after [4.266].

Brewster-angle microscopy dispensed with the need for a probe molecule [41,42], Brewster-angle microscopy is based solely on the reflectivity properties of p-polarized light. The reflectance of p-polarized light at the water-air interface vanishes at 53.1° (using refractive indices at 20°C) if the interface is perfectly sharp in reality there is a deep minimum near zero. The presence of a monolayer gives an intervening layer of different re-... 

Figure 6. SNIFTIR spectra of the adsorbed intermediates involved in the oxidation of 0.1 M CHjOH in 0.5 M HCIO4 on a smooth Pt electrode (p-polarized light modulation potential AE = 0.3 V averaging of 128 interferograms). Electrode potential (mV/RHE) (1) 370, (2) 470, (3) 570, (4) 670, (5) 770.

In a typical ellipsometry experiment a sample is irradiated with polarized light, which subsequently is reflected from the sample surface and detected after passing an analyzer. The ratio p of complex reflectances for perpendicularly (s) and parallelly (p) polarized light usually is represented as follows ... 

While s-polarized radiation approaches a phase change near 180° on reflection, the change in phase of the p-polarized light depends strongly on the angle of incidence [20]. Therefore, near the metal surface (in the order of the wavelength of IR) the s-polarized radiation is greatly diminished in intensity and the p-polarized is not [9]. This surface selection rule of metal surfaces results in an IR activity of adsorbed species only if Sfi/Sq 0 (/i = dipole moment, q = normal coordinate) for the vibrational mode perpendicular to the surface. 

Schematic representation of the experimental setup for an in situ IR study of the electrode-electrolyte interface is given in Fig. 1.5. From the radiation leaving the IR source only, the p-polarized light is used for the reflection-absorption experiment in...

The other technique utilizes the different surface sensitivity for s-and p-polarized light - the former has its polarization vector perpendicular, the latter parallel to the plane of incidence. Due to the different... 

Polarization mechanisms, 10 21 Polarized ir radiation, 24 234 p-Polarized light, 24 115 s-Polarized light, 24 115... 

The fact that the molecules are adsorbed on a solid surface giv rise to a number of new effects compared to the gas phase situation. The experimental situation consists of a monolayer of molecules adsorbed on a metal surface, on which we shine infrared radiation and then detect the reflected light. The macroscopic theory for the electromagnetic response of such a system is reproduce in the previous reviews. A more microscopic treatment has been given by Persson, showing that the integrated infrared absorptance for p-polarized light is given by ... 

Potentiostatic techniques, 787, 1115, 1118 and impurities on electrodes. 1120 potential interval measurements, 1121 p-polarized light, 802 Potentiodynamic techniques, 1423, 1438 vs. potentiostatic techniques, 1426 Potentiostatic transients, 1414 difficulties in, 1415 double layer charging, 1416 radicals in, 1416 IR drop in, 1416 Prandtl layer, 1228... 

Define the following terms used in Section 6.2 (a) single crystal, (b) polycrystalline solid, (c) in situ technique, (d) ex situ technique, (e) diffraction pattern, (f) infrared radiation, (g) s-polarized and p-polarized light, and (h) radioactive isotope. (Gamboa-Aldeco)... 

Figure 10. Photocurrent spectra for p-polarized light at different angles of incidence, normalized to s-polarized light, represented by the spectrum at 0° (GaSe electrode with N, = 7 X 1016 cm 3 at V3ce = —0.7 V electrolyte /M H,SOk)...

For p-polarized light incident upon our test surface, the reflectance absorbance for adsorbed species, A, is defined... 

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