Visible photoluminescence from planar amorphous silicon nitride microcavities
Journal of the Optical Society of America B: Optical Physics
Optical Society of American (OSA)
2706 - 2711
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Please cite this item using this persistent URLhttp://hdl.handle.net/11693/25512
Fabry-Perot microcavities were used for the enhancement and inhibition of photoluminescence (PL) in a hydrogenated amorphous silicon nitride (a-SiNx :H) microcavity fabricated with and without ammonia. A planar microcavity was realized that included a metallic back mirror and an a-SiNx :H-air or a metallic front mirror. The PL extends from the red part of the spectrum to the near infrared for the samples grown without ammonia. The PL is in the blue-green part of the spectrum for the samples grown with ammonia. The PL amplitude is enhanced and the PL linewidth is reduced with respect to those in bulk a-SiNx :H. The numerically calculated transmittance, reflectance, and absorbance spectra agree well with the experimentally measured spectra. © 1998 Optical Society of America.