Journal
OPTICS LETTERS
Volume 33, Issue 19, Pages 2206-2208Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.33.002206
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Funding
- Australian Research Council
- Centre of Excellence and Discovery
- School of Physics, University of Sydney
- Denison Foundation
- International Science Linkages (ISL)
- Department of Education, Science, and Training (DEST)
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We demonstrate postprocessed microfluidic double-heterostructure cavities in silicon-based photonic crystal slab waveguides. The cavity structure is realized by selective fluid infiltration of air holes using a glass microtip, resulting in a local change of the average refractive index of the photonic crystal. The microcavities are probed by evanescent coupling from a silica nanowire. An intrinsic quality factor of 57,000 has been derived from our measurements, representing what we believe to be the largest value observed in microfluidic photonic crystal cavities to date. (C) 2008 Optical Society of America
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