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Enhanced stimulated Raman scattering in silicon nanocrystals embedded in silicon-rich nitride/silicon superlattice structures
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10.1063/1.3050109
/content/aip/journal/apl/93/25/10.1063/1.3050109
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/25/10.1063/1.3050109
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Cross sectional TEM bright-field micrograph of SRN/amorphous-Si superlattice structure consisting of ten SRN layers and nine layers for a total thickness of . (b) Higher magnification of a SRN layer, showing amorphous Si nanocrystals marked by arrows.

Image of FIG. 2.
FIG. 2.

(a) The inset shows how the pump and the probe interact with the sample. (b) Experimental setup: Pump-Raman laser; IRC–infrared collimator; –bandpass filter at ; Probe–external cavity diode laser; –microscope objective lens ; DF–dichroic filter; –longpass filter at ; Ch–chopper; PD–optically broadband photodetector; LIA–lock-in amplifier. Black lines represent electrical connections and wiring, green lines represent free-space optical beams, and magenta lines represent optical fiber.

Image of FIG. 3.
FIG. 3.

Measured spectral characteristics of in amorphous Si nanoclusters embedded in SRN-Si-SLs superlattice structures.

Image of FIG. 4.
FIG. 4.

The SRS-gain (amplification of the stokes signal in dB/cm) is plotted against the effective pump power at the sample surface both for amorphous Si nanoclusters embedded in SRN-Si-SLs (◻ red) and for bulk silicon (○ black).

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/content/aip/journal/apl/93/25/10.1063/1.3050109
2008-12-23
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Enhanced stimulated Raman scattering in silicon nanocrystals embedded in silicon-rich nitride/silicon superlattice structures
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/25/10.1063/1.3050109
10.1063/1.3050109
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