Superradiant emission from Bloch oscillations in semiconductor superlattices

R. Martini, G. Klose, H. Roskos, H. Kurz, H. Grahn, R. Hey

Research output: Contribution to journalArticlepeer-review

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Abstract

The superradiant character of submillimeter-wave emission from optically excited electronic Bloch oscillations in a GaAs/(Formula presented)(Formula presented)As superlattice is investigated by time-resolved terahertz emission spectroscopy. The intensity of the radiation and its decay time are studied as a function of the density of excited charge carriers. From the measured emission efficiency, the spatial amplitude of the charge oscillations is estimated.

Original languageEnglish
Pages (from-to)R14325-R14328
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume54
Issue number20
DOIs
StatePublished - 1996

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