Ultraslow bright and dark solitons in semiconductor quantum wells

Wen-Xing Yang, Jing-Min Hou, Ray-Kuang Lee
2008 Physical Review A. Atomic, Molecular, and Optical Physics  
We study the low-intensity light pulse propagation through an asymmetric double quantum well via Fanotype interference based on intersubband transitions. The propagation of the pulse across the quantum well is studied analytically and numerically with the coupled Maxwell-Schrödinger equations. We show the generation of ultraslow bright and dark optical solitons in this system. Whether the solitons are dark and bright can be controlled by the ratio of dipole moments of the intersubband
more » ... ersubband transitions. Such investigation of ultraslow optical solitons in the present work may lead to important applications such as high-fidelity optical delay lines and optical buffers in semiconductor quantum wells structure.
doi:10.1103/physreva.77.033838 fatcat:bqnakghagbfh3m5cnxcvgblaw4