Intrinsic symmetry of nonlocal nonlinear optical susceptibilitiesстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 11 апреля 2022 г.
Аннотация:The permutation symmetry relations of the nth order nonlocal nonlinear optical susceptibilitiesemerging in the absence of absorption are obtained from the basic statements ofelectrodynamics. The values of the nth order nonlocal nonlinear susceptibility tensorcomponents with swapped frequencies and indices corresponding to the generated electric fieldand the electric field under the operator of differentiation in the constitutive equation only differby their signs and signs of the interchanged frequencies. Additionally, there exist n^2 −nrelations between three components of this tensor with cyclically permuted indices andfrequencies corresponding to the generated field, the field under the operator of differentiationin the constitutive equation and one of the remaining fields involved into nonlinear processunder consideration.