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Ultrafast relaxation and absorption saturation at near exciton resonance in a thin ZnO epilayer
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10.1063/1.3525993
/content/aip/journal/jap/109/1/10.1063/1.3525993
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/1/10.1063/1.3525993
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Absorption spectrum (hollow squares) and TIPL spectra (solid lines) with excitation of (thin line) and (thick line) from a thin ZnO epitaxial layer at RT.

Image of FIG. 2.
FIG. 2.

Measured normalized transient differential transmission as a function of time delay with photoexcited energy above band-gap states. Dotted line is a fitting curve.

Image of FIG. 3.
FIG. 3.

Measured normalized transient differential transmission as a function of time delay for photon wavelength at 372 and 373 nm. Dotted lines are fitting curves.

Image of FIG. 4.
FIG. 4.

The maximal differential transmission as a function of photon wavelength under pumping density of .

Image of FIG. 5.
FIG. 5.

Measured normalized transient differential transmission as a function of time delay for photon wavelength at 372.5 nm under pumping fluence of (from bottom to top) 10, 20, and .

Image of FIG. 6.
FIG. 6.

A plot of negative differential absorption maximum as a function of pumping fluence (solid squares) with excitation near exciton resonance for wavelength at 372.5 nm. The solid curve represents the fitting curve to Eq. (1) and the dashed lines plotted to guide the eyes revealing a turning point at pumping fluence of .

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/content/aip/journal/jap/109/1/10.1063/1.3525993
2011-01-04
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Ultrafast relaxation and absorption saturation at near exciton resonance in a thin ZnO epilayer
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/1/10.1063/1.3525993
10.1063/1.3525993
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