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Fiber optic index sensor enhanced by gold nanoparticle assembly on long period grating
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SYSNO ASEP 0484868 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Fiber optic index sensor enhanced by gold nanoparticle assembly on long period grating Author(s) Tian, F. (US)
Li, X. (US)
Kaňka, Jiří (URE-Y)
Du, H. (US)Number of authors 4 Source Title Optik. - : Elsevier - ISSN 0030-4026
Roč. 132, March (2017), s. 445-449Number of pages 5 s. Publication form Print - P Language eng - English Country DE - Germany Keywords Layer-by-layer ; Long period grating ; Au nanoparticle Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering OECD category Electrical and electronic engineering R&D Projects LH11038 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support URE-Y - RVO:67985882 UT WOS 000394061400050 EID SCOPUS 85007551032 DOI 10.1016/j.ijleo.2016.12.059 Annotation The sensing performance of long period grating (LPG) in integration with colloidal gold nanoparticles (LPG-AuNPs) is investigated. An LPG coupled with a higher cladding mode of LP0.10 is fabricated on single mode fiber (SMF) with higher sensitivity to refractive index compared with lower cladding modes such as LP0,2, LP0,3 and LP0.4 via symmetric CO2 laser irradiation. A bilayer of poly (allylamine hydrochloride) (PAH) and gold nanoparticles is deposited on the grating portion via layer-by-layer self-assembly technique. It is found that the sensitivity is increased from 460 nmirefractive index unit (RIU) to 759 nm/RIU using the LPG-AuNPs Workplace Institute of Radio Engineering and Electronics Contact Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Year of Publishing 2018
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