Premium
Spatial correlation of laser‐generated electrons and holes in quantum wells
Author(s) -
Belitsky V. I.,
Cantarero A.,
Pavlov S. T.,
Cardona M.,
Korovin L. I.,
Lang I. G.
Publication year - 1995
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221880229
Subject(s) - electron , phonon , spatial correlation , physics , quantum well , absorption (acoustics) , scattering , atomic physics , laser , spatial distribution , semiconductor , condensed matter physics , optics , quantum mechanics , telecommunications , statistics , mathematics , computer science
The spatial correlation of hot electrons and holes generated by light in a semiconductor quantum well (QW) is studied. For hot electron‐hole pairs in a polar material, this correlation is determined by the interaction with LO‐phonons. We analyze the distribution F N (r, K ) of electrons and holes which are created in a given light absorption process, with respect to their relative separation r and total quasimomentum ħK , after the emission of a number N of LO‐phonons. The relationship between the spatial distribution of electrons and holes in these intermediate states and the cross‐section of multi‐phonon resonant Raman scattering (MPRRS) is established. Spatial correlation effects are strongly enhanced in low‐dimensional systems, a fact which is also reflected in the MPRRS efficiency.