Superradiant generation of femtosecond pulses in quantum-well heterostructures Academic Article uri icon


  • We propose a new type of accessible source of ultra-short pulses based on the phenomenon of collective coherent recombination (superradiance) of electrons and holes in semiconductor heterostructures. We find and analyse a novel regime of ultra-fast operation of quantum-well semiconductor lasers in which a quasiperiodic sequence of femtosecond superradiant pulses is emitted under continuous pumping. According to our calculations for AlGaAs-GaAs heterostructures, the coherent optical pulses of duration ≳ 30 fs and peak intensity ≳ 100 MW cm-2can be generated in a low-Q cavity of length ∼30-100 μm.

author list (cited authors)

  • Belyanin, A. A., Kocharovsky, V. V., & Kocharovsky, V. V

complete list of authors

  • Belyanin, AA||Kocharovsky, VV||Kocharovsky, VV

publication date

  • January 1, 1998 11:11 AM