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Proceedings Paper

Sensitivity analysis of a photonic crystal structure for index-of-refraction sensing
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Paper Abstract

We present the optical characterization of an all-dielectric photonic crystal (PC)-based guided resonance filter sensitive to index-of-refraction changes in aqueous solutions. Spectral peak width was found to be 9.8 and 4.4 nm around 816 nm (water media), corresponding to a quality factor Q of 83 and 181, respectively. A spectral shift of peak wavelength with index change of 130 nm/RIU was observed for bulk fluid experiments. Measured peak shift (&Dgr;&lgr;=0.2nm) corresponds to a detectable index change &Dgr;n=1.5×10-3.

Paper Details

Date Published: 12 February 2007
PDF: 9 pages
Proc. SPIE 6447, Nanoscale Imaging, Spectroscopy, Sensing, and Actuation for Biomedical Applications IV, 64470P (12 February 2007); doi: 10.1117/12.705670
Show Author Affiliations
Ofer Levi, Stanford Univ. (United States)
Meredith M. Lee, Stanford Univ. (United States)
Jingyu Zhang, Ctr. for High Technology Materials, Univ. of New Mexico (United States)
Virginie Lousse, Stanford Univ. (United States)
Steven R. J. Brueck, Ctr. for High Technology Materials, Univ. of New Mexico (United States)
Shanhui Fan, Stanford Univ. (United States)
James S. Harris, Stanford Univ. (United States)


Published in SPIE Proceedings Vol. 6447:
Nanoscale Imaging, Spectroscopy, Sensing, and Actuation for Biomedical Applications IV
Alexander N. Cartwright; Dan V. Nicolau, Editor(s)

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