Photoluminescence from silicon dioxide photonic crystal cavities with embedded silicon nanocrystals

Details Photoluminescence from silicon dioxide photonic crystal cavities with embedded silicon nanocrystals Photoluminescence from silicon dioxide photonic crystal cavities with embedded silicon nanocrystals

2010-03-04

arxiv.org/abs/1003.0977v1

Physics

Optics

13 pages 9 figures

Scientific paper

One dimensional nanobeam photonic crystal cavities are fabricated in silicon dioxide with silicon nanocrystals. Quality factors of over 9 x 10^3 are found in experiment, matching theoretical predictions, with mode volumes of 1.5(lambda/n)^3 . Photoluminescence from the cavity modes is observed in the visible wavelength range 600-820 nm. Studies of the lossy characteristics of the cavities are conducted at varying temperatures and pump powers. Free carrier absorption effects are found to be significant at pump powers as low as a few hundred nanowatts.

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