Poynting vector in a uniaxially birefringent multilayered system

Calculations of the Poynting vector in a uniaxially birefringent multilayered system are presented. Such calculations are then used to illustrate results from a system involving a liquid crystal layer aligned between silver films and observed using attenuated total reflection. Excitation of surface plasmon-polariton and guided wave resonances within the structure provide for highly structured reflectivity and transmissivity responses. Detailed analysis of the optical response of the layered structure are presented elsewhere. In this work the Poynting vector fields for several of the resonant modes are examined.