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Article Dans Une Revue Optik Année : 2018

A simplified modal expansion formalism adapted to the optical design of resonant cavity enhanced photodetectors using metallic gratings

Résumé

In this communication, we present a method to model the light absorption in a resonant photoconductor based on a photoconductive layer sandwiched between a metallic grating in front side and a metallic backside mirror. We started from a modal expansion formalism previously developed in order to model the transmission and the reflection of an infinite array of holes and we added the effect of a stack of homogeneous layers ended by a metallic mirror. It is finally shown that the electromagnetic response of the structure calculated with this numerical method is in good agreement with a more rigorous method such as the rigorous coupled wave analysis, whereas it requires a much lower computing power.
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Dates et versions

hal-02997746 , version 1 (20-11-2020)

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Maximilien Billet, Emilien Peytavit. A simplified modal expansion formalism adapted to the optical design of resonant cavity enhanced photodetectors using metallic gratings. Optik, 2018, 154, pp.828 - 839. ⟨10.1016/j.ijleo.2017.10.041⟩. ⟨hal-02997746⟩
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