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Two-photon pumped lasing in a single CdS microwire
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10.1063/1.4809537
/content/aip/journal/apl/102/21/10.1063/1.4809537
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/21/10.1063/1.4809537
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Experimental set-up schemes for optical measurements. For micro-absorption measurement, the lens ( = 30 cm) is replaced by an objective (40×), (b) The bright field image, and (c) the micro-absorption spectrum of a single CdS microwire.

Image of FIG. 2.
FIG. 2.

Two-photon pumped room-temperature emission spectra from the end facet of the microwire as excitation energy density increases, keeping the polarization direction parallel to the sample axis ( ). The insets show the dark-field images corresponding to spontaneous emission, amplified spontaneous emission, and lasing oscillation, respectively. The scale bar represents 10 m in length.

Image of FIG. 3.
FIG. 3.

Integrated emission intensity versus the excitation energy densities at θ = 0° (squares), (circles), and (triangles), respectively.

Image of FIG. 4.
FIG. 4.

Polar plot of integrated emission intensity as a function of the different polarization angles at the excitation density of 5.0 mJ/cm.

Image of FIG. 5.
FIG. 5.

The cross section field distribution of the plane at  = 0 in CdS microwire at three different polarization angles. The incident light was normal incident on the microwire, propagating along -axis. (a) θ = 0°, (b) θ = 45°, and (c) θ = 90°. The diameter and length are 1 m and 28 m (rectangular dashes).

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/content/aip/journal/apl/102/21/10.1063/1.4809537
2013-05-31
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Two-photon pumped lasing in a single CdS microwire
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/21/10.1063/1.4809537
10.1063/1.4809537
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