Optical characterization of silicon on insulator photonic crystal nanocavities infiltrated with colloidal PbS quantum dots

D. F. Dorfner; T. Hürlimann; G. Abstreiter; J. J. Finley

doi:10.1063/1.2822441

Optical characterization of silicon on insulator photonic crystal nanocavities infiltrated with colloidal PbS quantum dots

D. F. Dorfner, T. Hürlimann, G. Abstreiter, J. J. Finley

Walter Schottky Institut

Research output: Contribution to journal › Article › peer-review

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Abstract

The authors present the fabrication of silicon on insulator (SOI) membrane nanocavities for use as sensitive optical biosensors and investigations of their optical properties. Simulations illustrate the evolution of the cavity mode frequency as a function of structural parameters. The SOI nanocavities were characterized using μ -photoluminescence spectroscopy by doping the photonic crystals with colloidal PbS quantum dots embedded in a polymer matrix. Experiments lead to cavity mode quality factors of Q=800±35 and the dependence on geometric parameters is in excellent agreement with our calculations.

Original language	English
Article number	233111
Journal	Applied Physics Letters
Volume	91
Issue number	23
DOIs	https://doi.org/10.1063/1.2822441
State	Published - 2007

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abstract = "The authors present the fabrication of silicon on insulator (SOI) membrane nanocavities for use as sensitive optical biosensors and investigations of their optical properties. Simulations illustrate the evolution of the cavity mode frequency as a function of structural parameters. The SOI nanocavities were characterized using μ -photoluminescence spectroscopy by doping the photonic crystals with colloidal PbS quantum dots embedded in a polymer matrix. Experiments lead to cavity mode quality factors of Q=800±35 and the dependence on geometric parameters is in excellent agreement with our calculations.",

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AB - The authors present the fabrication of silicon on insulator (SOI) membrane nanocavities for use as sensitive optical biosensors and investigations of their optical properties. Simulations illustrate the evolution of the cavity mode frequency as a function of structural parameters. The SOI nanocavities were characterized using μ -photoluminescence spectroscopy by doping the photonic crystals with colloidal PbS quantum dots embedded in a polymer matrix. Experiments lead to cavity mode quality factors of Q=800±35 and the dependence on geometric parameters is in excellent agreement with our calculations.

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Optical characterization of silicon on insulator photonic crystal nanocavities infiltrated with colloidal PbS quantum dots

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