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Quadratic autocorrelation of free-electron laser radiation and photocurrent saturation in two-photon quantum well infrared photodetectors
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10.1063/1.2357936
/content/aip/journal/apl/89/13/10.1063/1.2357936
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/13/10.1063/1.2357936
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Interferometric and intensity autocorrelation of two-photon QWIP 1 at (a) peak power density, (b) autocorrelation fringes, and square root of the signal with sinusoidal fit. The inset of (a) indicates the operation of the device.

Image of FIG. 2.
FIG. 2.

(Color online) Photocurrent density vs power density of sample 1 at zero delay and large delay. Predictions of linear and logarithmic screening are also shown.

Image of FIG. 3.
FIG. 3.

(Color online) Photocurrent ratio at (sample 1) and (sample 2) between zero delay and large delay vs photocurrent density under different experimental conditions as indicated and fitting curves according to the linear and logarithmic screening models. For clarity, the data for are shifted to the left by a factor of 10.

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/content/aip/journal/apl/89/13/10.1063/1.2357936
2006-09-27
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Quadratic autocorrelation of free-electron laser radiation and photocurrent saturation in two-photon quantum well infrared photodetectors
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/13/10.1063/1.2357936
10.1063/1.2357936
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