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Tunable interband and intersubband transitions in modulation C-doped quantum dot lasers by postgrowth annealing process
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10.1063/1.2968191
/content/aip/journal/apl/93/7/10.1063/1.2968191
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/7/10.1063/1.2968191
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) RT-PL spectra of undoped as grown QD sample and annealed samples at different temperatures. Inset to Fig. 1(a): Schematic structure of the active region of the undoped QD lasers. (b) RT-PL spectra of C-doped as grown QD sample and annealed samples at different temperatures. Inset: Schematic structure of the active region of the C-doped QD lasers.

Image of FIG. 2.
FIG. 2.

EL spectra of annealed C-doped QD laser as a function of drive currents. Inset: Compared EL spectra of as grown and annealed lasers under low drive currents.

Image of FIG. 3.
FIG. 3.

Threshold current densities of as grown and annealed C-doped QD lasers as a function of laser cavity lengths.

Image of FIG. 4.
FIG. 4.

(a) Light-injection current curve of the as grown C-doped QD laser. Inset to Fig. 4(a): Corresponding lasing spectra of the device under various injection currents. (b) Light-injection current curve of the annealed C-doped QD laser. Inset to (b): corresponding lasing spectra of the device under various injection currents.

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/content/aip/journal/apl/93/7/10.1063/1.2968191
2008-08-22
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Tunable interband and intersubband transitions in modulation C-doped InGaAs∕GaAs quantum dot lasers by postgrowth annealing process
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/7/10.1063/1.2968191
10.1063/1.2968191
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