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White light trapping using supercontinuum generation spectra in a lead-silicate fibre taper

Pengfei Wang, Timothy Lee, Ming Ding, Zhenggang Lian, Xian Feng, Youqiao Ma, Lin Bo, Qiang Wu, Yuliya Semenova, Wei Loh, Gerald Farrell, Gilberto Brambilla

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    We experimentally investigate white light optical trapping by generating a supercontinuum in a lead silicate fibre pumped by femtosecond pulses from a Ti:Sapphire laser near the zero-dispersion wavelength of 1030 nm, before confining the light using a microfibre half taper with a final tip diameter of 75 nm. Due to the high intensity gradient at the output, robust optical trapping is possible, as demonstrated for individual yeast cells using an average pumping power of 100 mW.
    Original languageEnglish
    Pages (from-to)40-45
    JournalJournal of Lightwave Technology
    Volume32
    Issue number1
    Publication statusPublished - Jan 2014

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