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Room temperature spontaneous emission enhancement from quantum dots in photonic crystal slab cavities in the telecommunications C band
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10.1063/1.3104855
/content/aip/journal/apl/94/12/10.1063/1.3104855
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/12/10.1063/1.3104855

Figures

Image of FIG. 1.
FIG. 1.

Typical microphotoluminescence spectrum obtained under cw excitation from the double heterostructure cavity exhibiting a resonant peak at a wavelength of 1538 nm. Inset (above): interferogram contrast of the emitted light decaying exponentially (gray stars and black solid line: experimental data; red solid line: exponential fit). The excitation power after the microscope objective is . Inset (below): top view of the photonic crystal cavity.

Image of FIG. 2.
FIG. 2.

(Left axis) Red squares: linewidth of the cavity mode as function of the excitation power. (Right axis) Blue circles: emission output intensity as function of the excitation power. Solid lines are guides for the eyes. Onset of lasing can be observed for excitation powers above .

Image of FIG. 3.
FIG. 3.

Lifetime measurements on ensemble of quantum dots over a spectral window of 0.8 nm centered at . Empty (full) circles represent the lifetime measured on dots off (on) resonance with the cavity mode. Dotted line and solid line are fits obtained by use of Eq. (1) for dots, respectively off and on resonance.

Tables

Generic image for table
Table I.

Measured spontaneous emission decay times for the dots in the unprocessed sample and on resonance with the cavity mode.

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/content/aip/journal/apl/94/12/10.1063/1.3104855
2009-03-23
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Room temperature spontaneous emission enhancement from quantum dots in photonic crystal slab cavities in the telecommunications C band
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/12/10.1063/1.3104855
10.1063/1.3104855
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