Quantum-kinetic theory of hot luminescence from pulse-excited semiconductors

Karsten Hannewald; Stephan Glutsch; Friedhelm Bechstedt

doi:10.1117/12.470409

11 June 2002 Quantum-kinetic theory of hot luminescence from pulse-excited semiconductors

Karsten Hannewald, Stephan Glutsch, Friedhelm Bechstedt

Proceedings Volume 4643, Ultrafast Phenomena in Semiconductors VI; (2002) https://doi.org/10.1117/12.470409
Event: Symposium on Integrated Optoelectronic Devices, 2002, San Jose, California, United States

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.

Citation Download Citation

Karsten Hannewald, Stephan Glutsch, and Friedhelm Bechstedt "Quantum-kinetic theory of hot luminescence from pulse-excited semiconductors", Proc. SPIE 4643, Ultrafast Phenomena in Semiconductors VI, (11 June 2002); https://doi.org/10.1117/12.470409

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