Open AccessLinear optical absorption properties and internal electromagnetic field distribu tions of periodic multiple quantum wells
Author(s) -
Xiao Wan-Neng,
Jian Zhao,
Weijiang Wang,
Runhua Li,
Jianying Zhou
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.2293
Subject(s) - absorption (acoustics) , physics , pulse (music) , materials science , atomic physics , field (mathematics) , quantum , optics , condensed matter physics , quantum mechanics , mathematics , detector , pure mathematics
Linear absorptive properties of the periodic multi-quantum well (MQW) structures are studied. It is found that the absorption is determined by the interplay of pulse widths, layer number N and periods. A threshold existing in N divides Bragg absorption into a rising and dropping regions. The corresponding maximum is an independent constant. Absorptions for non-Bragg arrangement keeps monoton ously increasing with its first part almost coinciding with the corresponding Br agg absorptions.This demonstrates a dramatic Bragg suppression,which never appea rs in the rising region. Further more, the Beer's law is proved to be still exac tly suitable for periodic structures.