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In a recent article, Alli and Sewell formulated a new version of theDicke-Hepp-Lieb laser model in terms of quantum dynamical semigroups, andthereby extended the macroscopic picture of the model. In the present article,we complement that picture with a corresponding microscopic one, which carriesthe following new results. (a) The local microscopic dynamics of the model ispiloted by the classical, macroscopic field, generated by the collective actionof its components; (b) the global state of the system carries no correlationsbetween its constituent atoms after transient effects have died out; and (c) inthe latter situation, the state of the system at any time $t$ maximises itsentropy density, subject to the constraints imposed by the instantaneous valuesof its macroscopic variables.

New Structures in the Theory of the Laser Model