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Structural and lasing characteristics of ultrathin hexagonal ZnO nanodisks grown vertically on silicon-on-insulator substrates
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10.1063/1.2779094
/content/aip/journal/apl/91/9/10.1063/1.2779094
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/9/10.1063/1.2779094
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Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) Low and (b) higher magnification SEM images, (c) XRD pattern, and (d) Raman spectrum of the as-prepared ZnO nanodisks.

Image of FIG. 2.
FIG. 2.

(Color online) (a) PL spectra from the ZnO nanodisks below and above the lasing threshold under femtosecond pulse laser excitation at ; (b) integrated emission intensity from nanodisks as a function of the excitation energy density (the lasing threshold is determined to be ; and time-resolved PL spectra from the ZnO nanodisks (c) at and (d) at under femtosecond pulse laser excitation at .

Image of FIG. 3.
FIG. 3.

(Color online) (a) Far-field optical image and (b) typical lasing spectra from the ZnO nanodisks under picosecond pulse laser excitation at , and schematics of possible resonant cavity modes formed in hexagonal ZnO nanodisks: (c) WGM and (d) quasi-WGM.

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/content/aip/journal/apl/91/9/10.1063/1.2779094
2007-08-30
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Structural and lasing characteristics of ultrathin hexagonal ZnO nanodisks grown vertically on silicon-on-insulator substrates
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/9/10.1063/1.2779094
10.1063/1.2779094
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