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Fiber optic index sensor enhanced by gold nanoparticle assembly on long period grating
- 1.0484868 - ÚFE 2018 RIV DE eng J - Článek v odborném periodiku
Tian, F. - Li, X. - Kaňka, Jiří - Du, H.
Fiber optic index sensor enhanced by gold nanoparticle assembly on long period grating.
Optik. Roč. 132, March (2017), s. 445-449. ISSN 0030-4026. E-ISSN 1618-1336
Grant CEP: GA MŠMT(CZ) LH11038
Institucionální podpora: RVO:67985882
Klíčová slova: Layer-by-layer * Long period grating * Au nanoparticle
Obor OECD: Electrical and electronic engineering
Impakt faktor: 1.191, rok: 2017
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
Trvalý link: http://hdl.handle.net/11104/0279990
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