Spectroscopy of 3D-trapped particles inside a hollow-core microstructured optical fiber

Optics Express
Charithra RajapakseAlexander Argyros

Abstract

We report on the demonstration of three-dimensional optical trapping inside the core of a hollow-core microstructured optical fiber specifically designed and fabricated for this purpose. Optical trapping was achieved by means of an external tweezers beam incident transversely on the fiber and focused through the fiber cladding. Trapping was achieved for a range of particle sizes from 1 to 5 µm, and manipulation of the particles in three-dimensions through the entire cross-section of the fiber core was demonstrated. Spectroscopy was also performed on single fluorescent particles, with the fluorescence captured and guided in the fiber core. Video tracking methods allowed the optical traps to be characterized and photobleaching of single particles was also observed and characterized.

References

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Citations

Dec 18, 2012·Biomedical Optics Express·Stephen C Warren-SmithTanya M Monro
Mar 14, 2013·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Yufeng ZhouQunling Fang

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