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19 μm quantum cascade infrared photodetectors
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10.1063/1.4807030
/content/aip/journal/apl/102/19/10.1063/1.4807030
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/19/10.1063/1.4807030

Figures

Image of FIG. 1.
FIG. 1.

Self-consistently calculated conduction band structures and relevant squared envelope functions of one period for samples A and B. (a) and (b) correspond to samples A and B, respectively.

Image of FIG. 2.
FIG. 2.

Photocurrent response curves for samples A and B as a function of temperature.

Image of FIG. 3.
FIG. 3.

I-V-curves for samples A and B at different temperatures under dark conditions. (a) and (b) correspond to samples A and B, respectively. Insets: extracted from measurements versus inverse temperature, namely Arrhenius plot.

Image of FIG. 4.
FIG. 4.

Johnson noise limited detectivities D* at different temperatures for samples A and B.

Tables

Generic image for table
Table I.

Layer thicknesses for one period of the active regions of samples A and B in angstroms along with the simulated detection energy E. Bold numbers stand for InGaAs wells, and roman numbers stand for InAlAs barriers. Underlining means doping density of 1.2 × 10 cm.

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/content/aip/journal/apl/102/19/10.1063/1.4807030
2013-05-16
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: 19 μm quantum cascade infrared photodetectors
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/19/10.1063/1.4807030
10.1063/1.4807030
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