Title :
Monolayer Detection Using Etched-core Fiber Bragg Grating Sensors
Author :
Saini, S.S. ; Stanford, C. ; Lee, S.M. ; Park, J. ; DeShong, P. ; Bentley, W.E. ; Dagenais, M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Maryland Univ., College Park, MD
Abstract :
In this paper, we show that the fiber Bragg grating sensor can be used to detect and differentiate the number of layers that are deposited on the fiber surface. A theory was developed for calculating the wavelength change as thin films of biological and chemical layers are immobilized on the surface of the fiber in the presence of a surrounding medium. A theory is developed and verified experimentally using immobilization of 3-aminopropyl-triethoxysilane (APTES) and 3-aminopropyl-ethoxysilane (APES) on the surface of the fiber and in-situ monitoring of the Bragg wavelength during surface functionalization
Keywords :
Bragg gratings; biosensors; chemical sensors; fibre optic sensors; monolayers; organic compounds; thin films; 3-aminopropyl-ethoxysilane immobilization; 3-aminopropyl-triethoxysilane immobilization; biological layers; chemical layers; etched-core fiber Bragg grating sensors; fiber surface; in-situ monitoring; monolayer detection; surface functionalization; thin films; Biosensors; Chemical and biological sensors; Chemical sensors; Chemistry; DNA; Educational institutions; Etching; Optical fiber sensors; Optical fiber theory; Optical surface waves;
Conference_Titel :
Lasers and Electro-Optics Society, 2006. LEOS 2006. 19th Annual Meeting of the IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-9555-7
Electronic_ISBN :
0-7803-9555-7
DOI :
10.1109/LEOS.2006.278890
