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Photonic quantum ring laser

J. C. Ahn, K. S. Kwak, B. H. Park, H. Y. Kang, J. Y. Kim, O'Dae Kwon

physics.opticsarXiv:physics/9811054

Abstract

We report a quantum ring-like toroidal cavity naturally formed in a vertical-cavity-like active microdisk plane due to Rayleigh's band of whispering gallery modes. The T-dependent redshift and a square-law property of microampere-range threshold currents down to 2 μA are consistent with a photonic quantum wire view, due to whispering gallery mode-induced dimensional reduction.

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