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Two-dimensional distributed-feedback in InGaAs/GaAs quantum structure lattice arrays
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10.1063/1.4757988
/content/aip/journal/apl/101/14/10.1063/1.4757988
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/14/10.1063/1.4757988
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Atomic force microscope image of the fabricated InGaAs/GaAs QSL array.

Image of FIG. 2.
FIG. 2.

PL spectra (77 K) comparison between (a) as-grown 10 nm In0.18Ga0.82As/GaAs QW, (b) as-processed QSL from (a), and (c) QSL from (b) with a 50 nm regrown GaAs cap layer.

Image of FIG. 3.
FIG. 3.

Temperature dependence of the spontaneous emission peak wavelength of (a) GaAs substrate, (b) InGaAs single QW, and (c) QSL array. The dashed and dotted lines are calculated GaAs and InGaAs QW energy-gap values between 77 and 200 K, respectively.

Image of FIG. 4.
FIG. 4.

The polar plot of angular dependence of normalized PL peak intensities at 77 K in In0.18Ga0.82As/GaAs QSL array (solid circle), In0.22Ga0.78As/GaAs QSL array (empty circle), and InAs/GaAs SCQDs (solid triangle). Data beyond 60° are not included due to excessive noises.

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/content/aip/journal/apl/101/14/10.1063/1.4757988
2012-10-05
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Two-dimensional distributed-feedback in InGaAs/GaAs quantum structure lattice arrays
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/14/10.1063/1.4757988
10.1063/1.4757988
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