A step towards determining transient response of chiral materials: Kramers-Kronig relations for chiral parameters

The Kramers-Kronig relations for the chirality admittance of isotropic reciprocal chiral materials are given using the techniques applied for linear, spatially local and causal operators. The results provide a physical insight into the analysis of electromagnetic pulse propagation in chiral materials. Such analysis will find potential applications in the design of broadband chiral materials in pulsed radar environments and the wideband control and management of radar cross-section of chiral coated targets.