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

Wang, Pengfei, Lee, Timothy, Ding, Ming, Lian, Zhenggang, Feng, Xian, Ma, Youqiao, Bo, Lin, Wu, Qiang, Semenova, Yuliya, Loh, Wei, Farrell, Gerald and Brambilla, Gilberto (2014) White light trapping using supercontinuum generation spectra in a lead-silicate fibre taper. Journal of Lightwave Technology, 32 (1). pp. 40-45. ISSN 0733-8724

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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.

Item Type:	Article
Subjects:	H600 Electronic and Electrical Engineering
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Ay Okpokam
Date Deposited:	15 May 2015 12:27
Last Modified:	12 Oct 2019 19:08
URI:	http://nrl.northumbria.ac.uk/id/eprint/22488

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