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On the constitutive relations of chiral media and Green's dyadics for an unbounded chiral medium
Author(s) -
Liu Shenghong,
Li LeWei,
Leong MookSeng,
Yeo TatSoon
Publication year - 1999
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19991220)23:6<357::aid-mop11>3.0.co;2-1
Subject(s) - green s , representation (politics) , constitutive equation , physics , mathematical physics , mathematical analysis , mathematics , classical mechanics , theoretical physics , finite element method , law , thermodynamics , politics , political science
Different constitutive relations and the limitation of some forms in the presence of exciting sources are discussed. Born's constitutive relations show a wider applicability in both source‐free and source‐incorporated cases. A new mapping method is introduced to obtain the spatial representation of the Green's dyadics from the spectral one. This method is first verified in the case where Post's relations are used, and then applied to rigorously derive the Green's dyadics in an unbounded chiral medium characterized by Born's constitutive relations. The final expressions are different from and should be more strict than the previous results obtained by simply applying the mapping relations. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 23: 357–361, 1999.