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Whispering gallery-mode lasing in ZnO microrods at room temperature
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10.1063/1.3276069
/content/aip/journal/apl/95/24/10.1063/1.3276069
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/24/10.1063/1.3276069
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) SEM image of a ZnO hexagonal microrod with a schematic WGM cavity and the light propagation path (dashed-line). (b) The schematic diagram for the lasing detection around the hexagonal ZnO microcavity by moving the OMA detector along the dashed-circle. The blue arrows denote the predominant light emitting directions.

Image of FIG. 2.
FIG. 2.

(a) Emission spectra of the ZnO microrod excited by a Nd:YAG laser with different excitation power density. The inset is the far-field image of the lasing ZnO microrod taken by a digital camera. (b) The relationship between output lasing intensity and excitation power density.

Image of FIG. 3.
FIG. 3.

(a) The simulated TE modes labeled with the mode numbers in the dispersion curve and (b) the lasing spectrum of the ZnO microrod excited at .

Image of FIG. 4.
FIG. 4.

The far-field lasing intensity distribution around the -axis of the hexagonal ZnO microrod with the diagonal of inserted with the light emission pattern from a two-dimensional hexagonal cavity simulated by Wiersig (see Ref. 16).

Image of FIG. 5.
FIG. 5.

The dependence of the lasing threshold (a) and the factor (b) on the diagonal of the hexagonal ZnO microrods.

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/content/aip/journal/apl/95/24/10.1063/1.3276069
2009-12-18
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Whispering gallery-mode lasing in ZnO microrods at room temperature
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/24/10.1063/1.3276069
10.1063/1.3276069
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