Effective photons in weakly absorptive dielectric media and the Beer-Lambert-Bouguer law

We derive effective photon modes that facilitate an intuitive and convenient picture of photon dynamics in a structured Kramers-Kronig dielectric in the limit of weak absorption. Each mode is associated with a mode field distribution that includes the effects of both material and structural dispersi...

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Bibliographic Details
Published inNew journal of physics Vol. 16; no. 4; pp. 43028 - 20
Main Authors Judge, A C, Brownless, J S, Bhat, N A R, Sipe, J E, Steel, M J, Martijn de Sterke, C
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 29.04.2014
Subjects
Absorptivity
Beer law
Bouguer law
Decay rate
Dielectric strength
Dispersion
Dispersions
dissipative systems
Law
Media
Photons
Physics
quantum optics
Temporal logic
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Summary:We derive effective photon modes that facilitate an intuitive and convenient picture of photon dynamics in a structured Kramers-Kronig dielectric in the limit of weak absorption. Each mode is associated with a mode field distribution that includes the effects of both material and structural dispersion, and an effective line-width that determines the temporal decay rate of the photon. These results are then applied to obtain an expression for the Beer-Lambert-Bouguer law absorption coefficient for unidirectional propagation in structured media consisting of dispersive, weakly absorptive dielectric materials.
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ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/16/4/043028