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Article Dans Une Revue Journal de Physique Colloques Année : 1981

PICOSECOND INTERBAND SATURATION AND INTRABAND RELAXATION OF PHOTOEXCITED CARRIERS IN GERMANIUM

A. Smirl
  • Fonction : Auteur
A. J. Miller
  • Fonction : Auteur
G. Perryman
  • Fonction : Auteur
T. Boggess
  • Fonction : Auteur

Résumé

We report new structure in the picosecond interband saturation of germanium. The excite-probe technique has been employed in an extensive study of a 6 - µm-thick slice of crystalline germanium as a function of temperature, excite pulse energy, and time delay between the excite and probe pulses from a Nd-glass laser. The results can be interpreted successfully in terms of a dynamic band-filling by a hot carrier distribution with intervalence-band absorption contributing at the highest carrier densities (~1020 cm-3). An intensity-dependent rise in sample transmission is observed that can exceed 200 psec under certain conditions and that is consistent with either a slow cooling of the hot carriers or with diffusion.

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jpa-00221693 , version 1 (04-02-2008)

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A. Smirl, A. J. Miller, G. Perryman, T. Boggess. PICOSECOND INTERBAND SATURATION AND INTRABAND RELAXATION OF PHOTOEXCITED CARRIERS IN GERMANIUM. Journal de Physique Colloques, 1981, 42 (C7), pp.C7-463-C7-470. ⟨10.1051/jphyscol:1981756⟩. ⟨jpa-00221693⟩

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