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Polariton relaxation bottleneck and its thermal suppression in bulk GaN microcavities
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10.1063/1.2839380
/content/aip/journal/apl/92/4/10.1063/1.2839380
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/4/10.1063/1.2839380
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

PL spectra (in semilogarithmic scale) at and detuning for emission angles from 0° to 40°. The spectra are shifted in intensity for clarity. The dotted lines are guides to the eye, indicating the positions of the LP and UP emissions.

Image of FIG. 2.
FIG. 2.

Experimental LP-PL intensities as a function of the external detection angle at different temperatures for a given initial detuning of (a) , (b) , and (c) , respectively. The insets represent the LP and UP dispersion curves at for (a) and (b) and at for (c). The intensities are normalized to unity for 0° detection angle.

Image of FIG. 3.
FIG. 3.

Theoretical simulations of the LP-PL intensities as a function of angle. The lines are obtained as solutions of semiclassical Boltzmann equations using the initial detuning deduced from the experimental data represented in Fig. 2: (a) , (b) , and (c) . The intensities are normalized to unity for 0° detection angle.

Image of FIG. 4.
FIG. 4.

Experimental LP-PL intensities as a function of the external detection angle for different excitation power densities at a temperature of . The detuning between the uncoupled photon and exciton modes at is . The intensities are normalized to the excitation power density.

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/content/aip/journal/apl/92/4/10.1063/1.2839380
2008-01-31
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Polariton relaxation bottleneck and its thermal suppression in bulk GaN microcavities
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/4/10.1063/1.2839380
10.1063/1.2839380
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