Total energy guided mode

Figure 1. Total energy and the Mulliken charge on an oxygen atom of an SiOj -4e cluster for (a) Td, (b) Csv and (o) D2d deformation modes. The Si-O-e" " angle is set to 180°. Solid circles represent the cluster calculation, solid lines are the fitted potentials, and the broken lines are guides to the eye. In (b) the Mulliken charge shown by the dashed line is for the oxygen ion moved during the calculation, while that shown by the dotted line is for the fixed oxygen ions. 1 Hartree = 2.6255 X 10 kJ/mol.

The total electromagnetic fields of an optical waveguide can be expressed as the sum of two components. One component, expressible as a summation over bound modes, describes the spatial steady state, where energy is guided indefinitely along a nonabsorbing waveguide. The second component is the radiation field, which describes the spatial transient. In Chapter 24 we... 

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