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- W2002664013 abstract "En utilisant un spot analyseur de faible surface (100 × 100 μm) et des énergies variables pour la lumière incidente, on a mesuré le coefficient d'absorption optique en divers points d'échantillons d'arséniure de gallium de type n. On observe des hétérogénéités qui, dans le cas de matériaux fortement dopés, doivent être attribuées aux fluctuations du taux de porteurs libres en différents points de l'échantillon, tandis que pour les dopages plus faibles, ce sont les dislocations qui, par le drainage des impuretés, sont à l'origine des variations observées. The optical absorption coeffient of n-type gallium arsenide is measured at many places of samples with an infrared microscope (spot of 100 × 100 μm) and variable energies for the incident light. The inhomogeneities we observed are associated with free carrier density fluctuations in heavily doped single crystals and with the impurities diffusion around dislocations in lower ones." @default.
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- W2002664013 date "1973-03-01" @default.
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- W2002664013 title "Etude quantitative par absorption optique de l'homogeneite de monocristaux d'arseniure de gallium" @default.
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- W2002664013 doi "https://doi.org/10.1016/0022-4596(73)90231-4" @default.
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