Premium
Stable rectangular pulses supported by a quantum dot optical amplifier
Author(s) -
Dachner MatthiasRené,
Paulau Pavel,
Engel Harald,
Knorr Andreas
Publication year - 2012
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201206450
Subject(s) - quantum dot , pulse (music) , excitation , physics , shell (structure) , amplifier , quantum , semiconductor , optoelectronics , optical amplifier , optics , materials science , quantum mechanics , laser , cmos , detector , composite material
We predict the formation of a stable solitary rectangular pulse in semiconductor quantum dot media. The formation of such a pulse occurs when a quantum dot system is pumped in a way, where the s shell excitation exhibits gain while the p shell absorbs. We provide formulas to describe the rectangular pulse by the systems material parameters. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)