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Evidence of “crossed” transitions in dots-in-a-well structures through waveguide absorption measurements
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10.1063/1.3000381
/content/aip/journal/apl/93/15/10.1063/1.3000381
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/15/10.1063/1.3000381
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) A scheme of the employed absorption setup. (b) Schematic representation of the investigated laser structures. (c) Details of the core region.

Image of FIG. 2.
FIG. 2.

Polarization-dependent absorption spectra (upper plot) and PL spectrum recorded at at a high excitation density (lower plot). The estimated onsets of the lowest energy bands of crossed transitions are indicatively shown by arrows (to be compared with Fig. 4); 0D confined transitions are numbered from 1 to 4.

Image of FIG. 3.
FIG. 3.

Absorption spectra as a function of the reverse applied bias for both states of polarization. The inset in the upper plot shows the energy shift for the and transitions.

Image of FIG. 4.
FIG. 4.

Schematic representation of the transitions involved in QD absorption (labeled with their energy in eV). The dashed-dot line represents the QW ground state PL transition.

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/content/aip/journal/apl/93/15/10.1063/1.3000381
2008-10-16
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Evidence of “crossed” transitions in dots-in-a-well structures through waveguide absorption measurements
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/15/10.1063/1.3000381
10.1063/1.3000381
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