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Ultrafast optical response of a high-reflectivity GaAs∕AlAs Bragg mirror
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10.1063/1.1854200
/content/aip/journal/apl/86/3/10.1063/1.1854200
http://aip.metastore.ingenta.com/content/aip/journal/apl/86/3/10.1063/1.1854200
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Measured reflectivity (circles) and calculated reflectivity (solid line) of a 30 layer pair GaAs∕AlAs Bragg mirror at 12.5° angle of incidence. The mirror is designed to have maximum reflectivity at 892 nm for normal incidence.

Image of FIG. 2.
FIG. 2.

Setup used to measure transmission through the mirror as a function of temporal pump–probe overlap. The probe is a broadband white light created by continuum generation with part of the pump light. The delay line in the pump path is scanned as transmission is measured in a spectrometer.

Image of FIG. 3.
FIG. 3.

Transmission at a wavelength of 931 nm as a function of probe delay for a pump fluence (closed circles) and (open circles).

Image of FIG. 4.
FIG. 4.

Transmission spectrum for umpumped mirror (triangles) at maximal pump probe overlap (a) and at the second peak in transmission, a 0.95 ps delay (c) for pump fluence of (closed circles) and (open circles). The switching occurs over the whole wavelength range measured. The ratio of the pumped transmission to the umpumped transmission at zero delay (b) and 0.95 fs delay (d). At zero delay the largest change occurs for pump fluence of at 931 nm, a ratio of 27. At a 0.95 ps delay the largest change occurs for pump fluence of at 933 nm, a ratio of 17.

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/content/aip/journal/apl/86/3/10.1063/1.1854200
2005-01-13
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Ultrafast optical response of a high-reflectivity GaAs∕AlAs Bragg mirror
http://aip.metastore.ingenta.com/content/aip/journal/apl/86/3/10.1063/1.1854200
10.1063/1.1854200
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