Long aliphatic chain coated rare-earth nanocrystal as polymer-based optical waveguide amplifiers

Ka-Long LEI, Cheuk Fai CHOW, Kwok-Chu TSANG, Elva N. Y. LEI, V. A. L. ROY, Michael H. W. LAM, C. S. LEE, E. Y. B. PUN, Jensen LI

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Abstract

Oleic acid-coated erbium–ytterbium co-doped NaYF₄ nanocrystals, NaY₇₈%F₄ : Yb₂₀%Er₂%, have been synthesized. The cubic nanocrystals were of an average size of 10 nm. The nanocrystals showed excellent redispersibility in common organic solvents and the KMBR® polymer matrix. An optical waveguide amplifier was fabricated by doping 0.1 wt% of the nanocrytals into the KMPR® polymeric host. At a small input signal power of 150 nW and a pump power of 150 mW, an optical gain of 4.81 dB cm⁻¹ at 1535 nm was achieved. Copyright © 2010 The Royal Society of Chemistry.
Original languageEnglish
Pages (from-to)7526-7529
JournalJournal of Materials Chemistry
Volume20
Issue number35
DOIs
Publication statusPublished - 2010

Citation

Lei, K.-L., Chow, C.-F., Tsang, K.-C., Lei, E. N. Y., Roy, V. A. L., Lam, M. H. W, . . . Li, J. (2010). Long aliphatic chain coated rare-earth nanocrystal as polymer-based optical waveguide amplifiers. Journal of Materials Chemistry, 20(35), 7526-7529. doi: 10.1039/C0JM00706D

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