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Spectrally smoothed supercontinuum generation by using unstably mode-locked laser pulses
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10.1063/1.2904619
/content/aip/journal/apl/92/13/10.1063/1.2904619
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/13/10.1063/1.2904619
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) and (b) show the waveforms of unstably and stably mode-locked pulse trains, respectively. A modulation frequency of about can be seen in the waveform of the unstably mode-locked pulses; (c) power stability of the unstable mode-locking operation. About 40% of the laser power was picked off by a beam splitter and measured at an interval of over ; (d) normalized interferometric autocorrelation curves of the unstably (blue) and stably (red) mode-locked pulses.

Image of FIG. 2.
FIG. 2.

(a) Experimentally measured spectrum of SC generated by unstably (blue) and stably mode-locked pulses (red). (b) Calculated SC spectra: averaged spectrum of SC generated by a series of pulses with varying amplitudes (blue), spectrum of the SC generated by a single pulse (red).

Image of FIG. 3.
FIG. 3.

CARS spectrum of an optically trapped polystyrene sphere (diameter of ). The smoothed SC was used as Stokes beam. For comparison, spontaneous Raman spectrum of the sphere is also shown. The normalized CARS spectrum was shifted up by an arbitrary value for clarity of the figure.

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/content/aip/journal/apl/92/13/10.1063/1.2904619
2008-03-31
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Spectrally smoothed supercontinuum generation by using unstably mode-locked laser pulses
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/13/10.1063/1.2904619
10.1063/1.2904619
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