Model standing wave formation

It can be seen in Figs. 1.15a and b that for the model ultrathin organic film at the air-Si and water-Si interfaces aU components of the MSEEs within this film for all angles of incidence are weakened relative to the incident radiation (< () = 1). Comparison of the electric field intensities in the air and water environments reveals that the MSEF magnitudes within the film, (El), increase as the optical density of the surroundings ( i) increases. Deviation of the values of (El) from unity and their dependence on the optical parameters of the medium are due to the formation of interference patterns (standing waves) in... 

The rules presented operate not only in many musical instruments and the formation of standing waves in them (in the resonator of a guitar, for instance) but are also used in models of an ideal black body, in quantum mechanics, in physics of soUd-state properties, etc. All of these are discussed in other sections of the book. 

To simulate the pattern formation observed in our experiments, we employ a model of the BZ reaction (21). We add a global linear feedback term to account for the bromide ion production that results from the actinic illumination, vqf = naxC av ss% where q> is the quantum yield. The results of our simulations mimic those of the experiments. Bulk oscillations and travelling waves are observed in die model for smaller values of g. At higher g values, standing, irregular and localized clusters are observed in the same sequence and with the same patterns of hysteresis as in the experiments... 

---