White Light Trapping Using Supercontinuum Generation Spectra in a Lead-Silicate Fibre Taper

Author

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

Author_Institution

Key Lab. of In-Fiber Integrated Opt. of Minist. of Educ., Harbin Eng. Univ., Harbin, China

Volume

32

Issue

1

fYear

2014

fDate

Jan.1, 2014

Firstpage

40

Lastpage

45

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.

Keywords

optical pumping; radiation pressure; sapphire; solid lasers; supercontinuum generation; titanium; Al₂O₃:Ti; femtosecond pulses; lead-silicate fibre taper; supercontinuum generation spectra; wavelength 1030 nm; white light trapping; zero-dispersion wavelength; Charge carrier processes; Fiber lasers; Fiber nonlinear optics; Lead; Optical fibers; Fibre taper; nonlinear compound fibre; supercontinuum generation; white light trapping;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2013.2289305

Filename

6665002