Green Open AccessPostgrowth nondestructive characterization of dilute-nitride VCSELs using electroreflectance spectroscopy
Journal
IEEE Photonics Technology Letters
Date Issued
August 2003
Abstract
We report electroreflectance (ER) measurements on a dilute-N GaInNAs vertical-cavity surface-emitting laser structure, as a function of temperature T, which probe the coupling between the cavity mode (CM) and a broad quantum-well (QW) ground state exciton. The latter is not separately observable in the ER, but, by monitoring the coupled CM-QW lineshape, we show it has maximum amplitude and is anti-symmetric when the CM and QW energies coincide at a certain T/sub opt/. This predicted T/sub opt/ is confirmed by optically pumped lasing measurements on the same sample
Affiliation
Scopus Subject Areas
Electronic, Optical and Magnetic Materials
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Atomic and Molecular Physics, and Optics
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Electrical and Electronic Engineering