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Proceedings Paper

Quantum-kinetic theory of hot luminescence from pulse-excited semiconductors
Author(s): Karsten Hannewald; Stephan Glutsch; Friedhelm Bechstedt
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Paper Abstract

We present a theory of time-and-energy-resolved photoluminescence (PL) from semiconductors excited by femtosecond laser pulses. Our approach combines quantum kinetics of hot-carrier relaxation and quantum theory of spontaneous emission, under consistent inclusion of Coulomb interaction. Model calculations show the transition from PL at the pump frequency towards excitonic PL within a few picoseconds. For intermediate times, we predict hot luminescence to be a sensitive tool to study the electron-lattice interaction. Finally, we extend the theory to the description of photoluminescence excitation (PLE) experiments, and we reinvestigate from first principles the assumption of equivalence between PLE and absorption spectra.

Paper Details

Date Published: 11 June 2002
PDF: 11 pages
Proc. SPIE 4643, Ultrafast Phenomena in Semiconductors VI, (11 June 2002); doi: 10.1117/12.470409
Show Author Affiliations
Karsten Hannewald, Friedrich-Schiller-Univ. Jena (Germany)
Stephan Glutsch, Friedrich-Schiller-Univ. Jena (Germany)
Friedhelm Bechstedt, Friedrich-Schiller-Univ. Jena (Germany)


Published in SPIE Proceedings Vol. 4643:
Ultrafast Phenomena in Semiconductors VI
Kong-Thon F. Tsen; Jin-Joo Song; Hongxing Jiang, Editor(s)

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