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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 26 — Dec. 27, 2004
  • pp: 6446–6455

Optical waveguides with an aqueous core and a low-index nanoporous cladding

W. P. Risk, H.-C. Kim, R. D. Miller, H. Temkin, and S. Gangopadhyay  »View Author Affiliations

Optics Express, Vol. 12, Issue 26, pp. 6446-6455 (2004)

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We report measurements on planar optical waveguides having an aqueous core and a low-index nanoporous dielectric cladding. Spin-on deposition of the nanoporous dielectric results in a thin (~0.8 µm) low-index cladding layer on a higher-index fused silica substrate, which produces leaky waveguide modes; however, for the aqueous layer thickness needed in most microfluidic applications, a large number of low-loss modes exist. We demonstrate that such a waveguide can be used for efficient collection and transport of fluorescence generated within the aqueous core and show that the use of these nanoporous materials offers advantages over the principal alternative, Teflon® AF.

© 2004 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(230.7390) Optical devices : Waveguides, planar

ToC Category:
Research Papers

Original Manuscript: November 3, 2004
Revised Manuscript: December 9, 2004
Published: December 27, 2004

William Risk, H. Kim, R. Miller, H. Temkin, and S. Gangopadhyay, "Optical waveguides with an aqueous core and a low-index nanoporous cladding," Opt. Express 12, 6446-6455 (2004)

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