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Proceedings Article

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

[+] Author Affiliations
Ofer Levi, Meredith M. Lee, Virginie Lousse, Shanhui Fan, James S. Harris

Stanford Univ.

Jingyu Zhang, Steven R. J. Brueck

Univ. of New Mexico

Proc. SPIE 6447, Nanoscale Imaging, Spectroscopy, Sensing, and Actuation for Biomedical Applications IV, 64470P (February 12, 2007); doi:10.1117/12.705670
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From Conference Volume 6447

  • Nanoscale Imaging, Spectroscopy, Sensing, and Actuation for Biomedical Applications IV
  • Alexander N. Cartwright; Dan V. Nicolau
  • San Jose, CA | January 20, 2007

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 (Δλ=0.2nm) corresponds to a detectable index change Δn=1.5×10-3.

© (2007) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Ofer Levi ; Meredith M. Lee ; Jingyu Zhang ; Virginie Lousse ; Steven R. J. Brueck, et al.
"Sensitivity analysis of a photonic crystal structure for index-of-refraction sensing", Proc. SPIE 6447, Nanoscale Imaging, Spectroscopy, Sensing, and Actuation for Biomedical Applications IV, 64470P (February 12, 2007); doi:10.1117/12.705670; http://dx.doi.org/10.1117/12.705670


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