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Transient effects of pump-probe optical response in intersubband transitions of semiconductor quantum wells
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10.1063/1.4754515
/content/aip/journal/jap/112/7/10.1063/1.4754515
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/7/10.1063/1.4754515
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

In the presence of the strong pump field, the lower and upper levels split into doublets with separation equal to . Capture (a) refers to the case with negative detuning (), while (b) corresponds to positive values of the detuning parameter (). As a consequence, in (c), we deduce that the dressed atom possesses the three resonance frequencies that are shown. These procedures are accomplished via three photon effect and the processes of stimulated Rayleigh scattering and ac-Stark-shifted resonance. The first dressed state is denoted by the coupling of the first (blue) and third (green) level, while the second dressed state by the coupling of the second (orange) and the fourth (red) state.

Image of FIG. 2.
FIG. 2.

Transient probe dispersion/absorption [(a) and (b)] and third order nonlinear susceptibility [(c) and (d)] spectra (in arbitrary units), as a function of the detuning δ, for . The results are obtained from numerical solution of Eqs. (15)–(27). The linear susceptibility and the third order nonlinear susceptibility are, respectively, given by the elements and . The parameters used are , , and .

Image of FIG. 3.
FIG. 3.

The same as in Fig. 2, with electron sheet density .

Image of FIG. 4.
FIG. 4.

The same as in Fig. 2, with .

Image of FIG. 5.
FIG. 5.

The same as in Fig. 3, with .

Image of FIG. 6.
FIG. 6.

The same as in Fig. 2, with .

Image of FIG. 7.
FIG. 7.

The same as in Fig. 3, with .

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/content/aip/journal/jap/112/7/10.1063/1.4754515
2012-10-15
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Transient effects of pump-probe optical response in intersubband transitions of semiconductor quantum wells
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/7/10.1063/1.4754515
10.1063/1.4754515
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