Pressure broadening of rotational bands. I - A statistical theory

摘要: Absorption of electromagnetic waves by rotational transitions molecules is formulated for the case in which wave frequency displaced from resonance an amount large compared to reciprocal duration a typical binary collision, and also differences between frequencies strong resonances gas. In this far‐wing limit, Fano’s relaxation operator reduced scalar parameter depends on displacement. This not symmetric with respect reflection about resonance, but becomes when multiplied factor exp(ℏωd/2kT) where ωd The theory applies dipolar any shape, collisions either or quadrupolar molecules.