High selectivity boolean olfaction using hollow-core wavelength-scalable Bragg fibers
83 - 90
MetadataShow full item record
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/21627
A new odorant detection scheme, based on infrared absorption of volatile organics inside an optofluidic channel array, is discussed in terms of its selectivity. The sensor unit of the array is a hollow core Bragg fiber that selectively (spectrally) guides an incident continuum radiation. The presence of infrared absorbing molecules in the channel results in the quenching of the otherwise transmitted signal. Each fiber unit in the array is designed and fabricated so that it is sensitive to specific chemical bonds and the bond environment, but at the same time, each fiber is also broadly sensitive to a large number of chemicals due to their infrared absorbance spectra. The cumulative array response data, using an appropriate threshold, enable selective binary sampling of the infrared fingerprint of hundreds of molecules. The selectivity of the system is quantitatively investigated with computer simulations and found to be exponentially increasing with the number of fibers in the array. Relatively simple data analysis using binary logic combined with the high selectivity of the novel scheme paves the way for ubiquitous application of electronic noses in toxic gas detection, food quality control, environmental monitoring, and breath analysis for disease diagnostics. © 2011 American Chemical Society.
- Research Paper 7144
Showing items related by title, author, creator and subject.
Bioinspired optoelectronic nose with nanostructured wavelength-scalable hollow-core infrared fibers Yildirim, A.; Vural, M.; Yaman, M.; Bayindir, M. (2011)A digital photonic nose concept based on infrared absorption inside a hollow core infrared transmitting fiber array is presented. Wavelength-scalable photonic band gap fibers filter specific energy photons from a blackbody ...
The formation and characterization of cyclodextrin functionalized polystyrene nanofibers produced by electrospinning Uyar, T.; Havelund, R.; Hacaloglu J.; Zhou X.; Besenbacher F.; Kingshott P. (2009)Polystyrene (PS) nanofibers containing the inclusion complex forming beta-cyclodextrin (β-CD) were successfully produced by electrospinning aimed at developing functional fibrous nanowebs. By optimization of the electrospinning ...
Yaman, M.; Kondakci H.E.; Bayindir, M. (Optical Society of American (OSA), 2010)Te-enriched chalcogenide glass Ge15As25Se 15Te45 (GAST) is synthesized, thermo-optically characterized and used to fabricate a one dimensional photonic crystal cavity mode that is dynamically and reversibly tuned by ...