Title :
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
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;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2013.2289305
