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Stability of Dual-Beam Fiber-Optical Traps for Low Refractive Index Contrast Particles

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Abstract

We experimentally and numerically characterize stable and unstable μm-particle trapping in a dual-beam fiber-optical trap. We find that reducing the fiber separation leads to increasing restoring forces when the ratio of refractive indices approaches 1.005.

© 2013 Optical Society of America

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