Effect of chirality on the transient signal wave front.
We analyze the behavior of the wave front of a transient pulse propagating in an isotropic homogeneous chiral material and discuss the role of chirality and its underlying physics on the pulse's rise time, ringing frequency at the early time of arrival, and state of polarization at the wave front. We use the one-resonance model of dispersion for the material parameters. It is shown that the chirality of the medium decreases the ringing frequency at the early time as compared with the nonchiral case and causes the rotation of the plane of polarization and the evolution of the cross-polarized component at the transient signal wave front. Potential applications and motivations for the present study are also mentioned.
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