Competition between sub-bandgap linear detection and degenerate two-photon absorption in gallium arsenide photodiodes (Orale)
Résumé
We investigate the response of a GaAs PIN diode to sub-bandgap photons. We evidence and describe two regimes: a regime of degenerate two-photon absorption, with a quadratic dependence to the incident flux, and a sub-bandgap temperature depen-dant linear regime, described as a photo-assisted Shockley Read Hall effect.
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