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Photoluminescence decay characteristics of an oxide-confined vertical-cavity surface-emitting laser
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10.1063/1.2189668
/content/aip/journal/apl/88/12/10.1063/1.2189668
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/12/10.1063/1.2189668
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic diagram of the VCSEL device after it has undergone the fabrication process. Oxidation of the thick AlAs layers reduces the diameter of the aperture to . The sloped device edge is a characteristic of the fabrication etching process.

Image of FIG. 2.
FIG. 2.

Normalized photoluminescence spectra for the oxidized and unoxidized VCSEL devices. Resonance wavelength peak is at and for the oxidized and unoxidized devices, respectively. Off resonance wavelength peaks at and are also observed.

Image of FIG. 3.
FIG. 3.

Normalized electroluminescence spectra for the oxidized and unoxidized VCSEL devices. Resonance wavelength peak is at and for the oxidized and unoxidized devices, respectively. These peaks were also seen in the photoluminescence spectra. Off resonance wavelength peaks at and are also observed.

Image of FIG. 4.
FIG. 4.

Time resolved photoluminescence of the oxidized and unoxidized VCSEL structures detected at the resonant peaks. The oxidized device showed faster decay time of compared to its unoxidized counterpart which is .

Image of FIG. 5.
FIG. 5.

Cross-sectional view of the two VCSEL devices. The unoxidized device is modeled as having only one region (region 1) while the oxidized device has two regions (region 1 and region 2). Sketch of the optical fields are shown for both models to indicate the expected outcome of the simulation.

Image of FIG. 6.
FIG. 6.

A simulation of the optical field intensity for the oxidized and unoxidized devices. The optical field intensity of the oxidized device which is squeezed to a smaller region is 3500 times greater than that of the unoxidized device.

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/content/aip/journal/apl/88/12/10.1063/1.2189668
2006-03-24
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Photoluminescence decay characteristics of an oxide-confined vertical-cavity surface-emitting laser
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/12/10.1063/1.2189668
10.1063/1.2189668
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