Journal
APPLIED SURFACE SCIENCE
Volume 257, Issue 8, Pages 3468-3472Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2010.11.048
Keywords
Optical materials; Porous silicon; Microcavity devices; Photoluminescence
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Modified photoluminescence is demonstrated from the dye saturated porous silicon based single and coupled microcavities. When photonic cavity mode is weakly coupled to the emission states of the dye, photoluminescence line narrowing and intensity enhancement have been observed. Our experimental work and transfer matrix simulations and cavity modelling convincingly explain the tunability and optical field confinement within the microcavity. We also show that the photoluminescence enhancement is due to one-dimensional microcavity effect. These optically active hybrid materials from inexpensive fabrication may become an important consideration for many photonic applications. (C) 2010 Elsevier B. V. All rights reserved.
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