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Journal Article

Surface-plasmon mode hybridization in subwavelength microdisk lasers

Hybridization of surface-plasmon and dielectric waveguide whispering-gallery modes are demonstrated in a semiconductor microdisk laser cavity of subwavelength proportions. A metal layer is deposited on top of the semiconductor microdisk, the radius of which is systematically varied to enable mode hybridization between surface-plasmon and dielectric modes. The anticrossing behavior of the two cavity mode types is experimentally observed via photoluminescence spectroscopy and optically pumped lasing action at a wavelength of lambda similar to 1.3 μm is achieved at room temperature.
R. Perahia
T. P. M. Alegre
A. H. Safavi-Naeini
O. Painter
Journal Name
Appl. Phys. Lett.
Publication Date
November, 2009