HIGHER MULTIPOLE POLARIZATION CORRELATION AND PHOTO-SELECTION IN SOLID SYSTEMS.

TL;DRAbstract

To facilitate interpretation of intensity experiments and to determine higher order molecular properties, the theory of angular and polarization $correlation^{1}$ of radiation has been extended to include (1) higher multipole transitions (2) interference $effects^{2}$ in molecules of arbitrary symmetry. For oriented molecules the intensities at two arbitrary directions related by given Euler angles are derived in terms of rotation matrices and the molecular multipole transition moments. This allows the interpretation of experiments with arbitrarily chosen propagation directions of the incoming (to interact with the parent molecule) and the outgoing (to observe the daughter molecule) radiation. It will also permit quantum averages for molecular rotation in a solid matrix. For random systems, it is shown that one should not neglect ``cross terms'' of matrix elements such as that in the electric dipole transition intensity for the parent molecule, $(x)_{p} (y)_{p}$. The product of the abo

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