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Non-Gaussian dark current noise in -type quantum-well infrared photodetectors
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10.1063/1.2138787
/content/aip/journal/apl/87/23/10.1063/1.2138787
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/23/10.1063/1.2138787
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Time traces of the dark current noise and the corresponding amplitude distributions for different bias at 77 K. Note the significant differences in vertical scales of (a)–(c).

Image of FIG. 2.
FIG. 2.

Dark current noise spectra at different biases.

Image of FIG. 3.
FIG. 3.

Bias dependence of the cut-off frequency of PSD from Fig. 2. The dashed lines are fits to the exponential growth. Top inset: Different electric-field distributions in the QWIP corresponding to different resistivity states of the system: (a) Low resistivity up state and (b) high resistivity down state. Bottom inset: Dark current vs voltage plot.

Image of FIG. 4.
FIG. 4.

Poisson distributions of up and down state residence times at . Insets: Standard deviations (SDs) of the current fluctuations around each level as a function of the voltage. Dashed lines are the best fits to the exponential law.

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/content/aip/journal/apl/87/23/10.1063/1.2138787
2005-11-28
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Non-Gaussian dark current noise in p-type quantum-well infrared photodetectors
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/23/10.1063/1.2138787
10.1063/1.2138787
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