@inproceedings{b1ec04ebccbb49a2bcf85e66827e4eca,
title = "Ultrasensitive refractive index sensor based on twin-core photonic bandgap fibers",
abstract = "We have theoretically investigated twin-core all-solid photonic bandgap fibers (PBGFs) for evanescent wave sensing of refractive index within one single microfluidic analyte channel centered between the two cores. The sensor can achieve ultrahigh sensitivity by detecting the change in transmission. We find novel features in the sensing characteristics: the sensitivity is higher at the short wavelength edge of a bandgap than at the long wavelength edge, the effective index of the odd supermode (nodd) is more sensitive to ambient refractive index change compared with that of the even supermode (n even).",
keywords = "Directional coupler, Fiber sensor, Photonic bandgap fiber",
author = "Wu Yuan and Town, {Graham E.} and Ole Bang",
year = "2009",
doi = "10.1117/12.835326",
language = "English (US)",
isbn = "9780819478146",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "20th International Conference on Optical Fibre Sensors",
note = "20th International Conference on Optical Fibre Sensors ; Conference date: 05-10-2009 Through 09-10-2009",
}