Optics Express · 2008 · 68 citations · 0 references
EngineeringElectrical EngineeringPhysicsElectromagneticsElectromagnetismPropagationBeam TheoryElectromagnetic WavesFar-field RegionsPhysical OpticsPropagation ModelingWave PropagationBeam PropagationBeam Wave PropagationFar-field AnalysisFar-field PropagationGaussian Beam OpticsGaussian Beam PropagationStationary Phase Approximation
The analytical vectorial structure of HGB is investigated in the far field based on the vector plane wave spectrum and the method of stationary phase. The energy flux distributions of HGB in the far-field, which is composed of TE term and TM term, are demonstrated. The physics pictures of HGB is illustrated from the vectorial structure, which is important to understand the theoretical aspects of both scalar and vector HGB propagation.