Combinational absorption of the two-photon field in a dispersive medium by an impurity atom
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A complete solution is given for the problem of impurity excitation by a two-photon field, as a result of which the remaining free quantum passes from one polariton branch of the spectrum to another without change in the wave vector. The decisive role of relaxation constants in the formation of the process is noted. The criteria of independent behavior of photons in this reaction are given. The given process belongs to the class of processes due to disrupted interference of the matrix elements.
KeywordsMatrix Element Wave Vector Decisive Role Impurity Atom Complete Solution
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