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Electrically injected spin-polarized vertical-cavity surface-emitting lasers
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10.1063/1.2035329
/content/aip/journal/apl/87/9/10.1063/1.2035329
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/9/10.1063/1.2035329
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Figures

Image of FIG. 1.
FIG. 1.

(a) Device heterostructure showing the doping profile, growth temperatures, and layer thicknesses of the top and bottom mirrors, cavity, and active region; (b) room-temperature reflectivity and photoluminescence (PL) spectra of the spin-VCSEL heterostructure prior to fabrication. A offset between the reflectivity dip and PL peak wavelengths at was introduced to optimize the spin-VCSEL performance at ; (c) image of a fabricated spin-VCSEL with ground-signal-ground contacts.

Image of FIG. 2.
FIG. 2.

(a) Linear-polarization-resolved electroluminescence spectra [full width at half-maximum, ] of the spin-VCSEL at ; (b) light vs current plots of a typical VCSEL having an aperture diameter ( outer diameter) obtained at and .

Image of FIG. 3.
FIG. 3.

(a) Field dependence of the degree of circular polarization demonstrating helicity modulation of the elliptically polarized emission at using applied magnetic fields; (b) temperature dependence of the degree of circular polarization demonstrating spin injection and device operation from . Inset shows the in-plane, field-cooled magnetization vs temperature for the low-temperature-annealed laser heterostructure.

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/content/aip/journal/apl/87/9/10.1063/1.2035329
2005-08-24
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electrically injected spin-polarized vertical-cavity surface-emitting lasers
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/9/10.1063/1.2035329
10.1063/1.2035329
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