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All-optical signal amplification in multiple-quantum-well resonant photonic bandgap structures
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10.1063/1.2904696
/content/aip/journal/apl/92/13/10.1063/1.2904696
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/13/10.1063/1.2904696
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Excitation geometry of a MQW-RPBG. (b) Photonic band structure for an infinite Bragg-spaced MQW (the inter-QW distance is ), showing the intermediate band (IB), the stop-band regions, and the two polariton bands spectrally above (UPB) and below (LPB) the stop-bands. The dependence of the bandstructure on the in-plane momentum is neglected for the considered small angles of incidence related to the in-plane momentum .

Image of FIG. 2.
FIG. 2.

Gain in the Bragg-spaced MQW structures. Left: 400-QWs, right: 200-QWs. [(a) and ] Linear reflection (gray shaded), transmission (solid), and absorption (dashed). (a) Included is the spectral shape of the control pulse (dark gray shaded) for the optimum control frequency in (b). [(b)–(e) and ] Gain in the signal (solid) and idler (dashed) directions vs the central control frequency (same as central signal frequency). Note the different scales of the vertical (gain) axes in the left column. Results are shown for Gaussian control and signal pulses of 10 and length full width at half maximum, respectively. The control to signal delay time is zero. The control peak intensity is and the exciton dephasing is . Deviations from these parameters are noted in each panel.

Image of FIG. 3.
FIG. 3.

(a) Time-resolved reflected signal intensity (in units of incoming signal’s peak intensity), corresponding to the data in Fig. 2(b). Control (thin dashed) and signal (thin solid) central frequencies are (dashed-dotted), (solid), and (dotted). (b) Spectral domain results for signal (light gray shaded) and idler (solid) reflection and signal (dark gray shaded) and idler (dashed) transmission for the optimum control frequency (indicated by dotted line). Calculations done for a spectrally broad signal. Inset: corresponding time-resolved reflected and transmitted signal and idler intensities normalized to the incoming signal’s peak intensity.

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/content/aip/journal/apl/92/13/10.1063/1.2904696
2008-04-01
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: All-optical signal amplification in multiple-quantum-well resonant photonic bandgap structures
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/13/10.1063/1.2904696
10.1063/1.2904696
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