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Article overview
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Magnetic light amplification by stimulated emission of radiation in subwavelength systems of a dielectric cavity and magnetic quantum emitters | Zhong-Jian Yang
; Xiao-Jing Du
; Ma-Long Hu
; Jun He
; | Date: |
4 Jan 2023 | Abstract: | We propose a magnetic laser in a subwavelength system consisting of a
high-refractive-index dielectric cavity and an active medium formed by magnetic
quantum emitters. Stimulated emissions of magnetic quantum emitters induced by
their coherent interactions with quantized magnetic fields of a cavity are
theoretically considered. The condition to archive such a magnetic laser is
obtained. Numerical results show that magnetic lasers are feasible in some
realistic systems, for example, a silicon disk of high-quality whispering
gallery modes with embedded emitters. Furthermore, the competitions between the
electric interaction and magnetic one in terms of their Purcell factors are
also considered in some magnetic laser achievable systems. In a
wavelength-scale silicon block of a high-order magnetic mode, the ratio of
magnetic Purcell factor to the electric one can reach more than ~103 large. Our
results open up ways to enhanced magnetic light-matter interactions. | Source: | arXiv, 2301.01418 | Services: | Forum | Review | PDF | Favorites |
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