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Updated: May 20, 2026

Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
Published on: April 4, 2016
Analysis of dispersive and dissipative media with optical resonances
Frederico Dias Nunes1, Ben-Hur Viana Borges, John Weiner
1Grupo de Engenharia da Informação, DES, CP.7.800 – Recife-SP, CEP 50670-000, UFPE, and IFSC-INOF, USP, CP. 369, São Carlos-SP,CEP 13560-970, Brazil. fdnunes@ufpe.br
Abstract:
In this paper we analyze the problem of light-matter interaction when absorptive resonances are imbedded in the material dispersion. We apply an improved approach to aluminum (Al) in the optical frequency range to investigate the impact of these resonances on the operating characteristics of Al-based nanoscale devices. Quantities such as group velocity, stored energy density, and energy velocity, normally obtained using a single resonance model [Wave Propagation and Group Velocity (Academic Press, 1960), Nat. Mater. 11, 208 (2012)], are now accurately calculated regardless of the medium adopted. We adapt the Loudon approach [Nat. Mater. 11, 208 (2012)] to media with several optical resonances and present the details of the extended model. We also show pertinent results for Al-based metal-dielectric-metal (MDM) waveguides, around spectral resonances. The model delineated here can be applied readily to any metal accurately characterized by Drude-Lorentz spectral resonance features.
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