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Midinfrared intersubband absorption in InGaAs/GaAsSb multiple quantum wells
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10.1063/1.3189703
/content/aip/journal/apl/95/4/10.1063/1.3189703
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/4/10.1063/1.3189703
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Figures

Image of FIG. 1.
FIG. 1.

(a) FTIR transmission spectra at room temperature of a sample with a nominal well width of 7.6 nm using TM- and TE-polarized light. (b) ISB absorption spectrum of the same sample, obtained by taking the negative natural logarithm of the ratio .

Image of FIG. 2.
FIG. 2.

Normalized ISB absorption spectra at room temperature of the five samples with nominal well widths of 4.5, 6, 7.6, 9.6, and 12 nm (open circles: experimental data; solid lines: fits). The arrow indicates the direction in which the well width increases.

Image of FIG. 3.
FIG. 3.

Well width dependence of the ISB transition energy for a InGaAs/GaAsSb QW. The filled circles indicate the experimental values of the ISB resonances, while the solid line is the calculation. Inset: schematic of the conduction band with the moduli squared of the wave functions of the levels which are involved in the ISB absorption process. The CBO is also indicated.

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/content/aip/journal/apl/95/4/10.1063/1.3189703
2009-07-27
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Midinfrared intersubband absorption in InGaAs/GaAsSb multiple quantum wells
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/4/10.1063/1.3189703
10.1063/1.3189703
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