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Published July 1, 2005 | public
Journal Article Open

Microfluidic integration of porous photonic crystal nanolasers for chemical sensing


We have recently developed planar photonic crystal nanolasers based on porous cavity designs. High-quality factor cavities confine light within the pores of the photonic crystal and, thus, our lasers are ideally suited for the investigation of nanoscale interactions between light and matter.We have demonstrated the operation of photonic crystal lasers within different chemical solutions, embedded them into silicone microfluidic flow channels, and were able to detect refractive index changes as small as delta n = 0.005. We predict that our porous nanolasers can detect refractive index changes as small as delta n = 8.23 x 10(-4).

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© 2005 IEEE. "Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE." Manuscript received June 30, 2004; revised October 11, 2004.


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