Electromagnetic effects in anti-Hermitian media with gain and loss

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

22 Lataukset (Pure)

Abstrakti

Incorporating both gain and loss into electromagnetic systems provides possibilities to engineer effects in unprecedented ways. Concerning electromagnetic effects in isotropic media that have concurrently electric and magnetic responses, there is, in fact, a degree of freedom to distribute the gain and loss in different effective material parameters. In this paper, we analytically scrutinize wave interactions with those media, and, most importantly, we contemplate the extreme scenario where such media are anti-Hermitian. Considering various conditions for excitation, polarization, and geometry, we uncover important effects and functionalities such as lasing into both surface waves and propagating waves, conversion of evanescent source fields to transmitted propagating waves, full absorption, and enhancing backward to forward scattering ratio. We hope that these findings explicitly show the potential of anti-Hermiticity to be used in optical physics as well as microwave engineering for creating and using unconventional wave phenomena.

AlkuperäiskieliEnglanti
Artikkeli013070
Sivut1-11
Sivumäärä11
JulkaisuPHYSICAL REVIEW RESEARCH
Vuosikerta6
Numero1
DOI - pysyväislinkit
TilaJulkaistu - tammik. 2024
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Sormenjälki

Sukella tutkimusaiheisiin 'Electromagnetic effects in anti-Hermitian media with gain and loss'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

Siteeraa tätä