Blue-green optically pumped GaN-based vertical cavity surface emitting laser |
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| Authors: | Cai L.-E. Zhang J.-Y. Zhang B.-P. Li S.-Q. Wang D.-X. Shang J.-Z. Lin F. Lin K.-C. Yu J.-Z. Wang Q.-M. |
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| Affiliation: | Dept. of Phys. & Semicond. Photonics Res. Center, Xiamen Univ., Xiamen; |
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| Abstract: | Blue-green GaN-based vertical cavity surface emitting lasers (VCSELs) were fabricated with two dielectric Ta2O5/ SiO2 distributed Bragg reflectors. Lasing action was observed at a wavelength of 498.8 nm at room temperature under optical pumping. Threshold energy density and emission linewidth were 189 mJ/cm2 and 0.15 nm, respectively. The result demonstrates that blue-green VCSELs can be realised using III-nitride semiconductors. |
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