Optical fiber nano-tweezers, a complementary approach for micro- and nanoparticle trapping

Jochen Fick

doi:10.1117/12.2316567

24 April 2018 Optical fiber nano-tweezers, a complementary approach for micro- and nanoparticle trapping

Jochen Fick

Proceedings Volume 10712, Optical Manipulation Conference; 1071207 (2018) https://doi.org/10.1117/12.2316567
Event: SPIE Structured Light, 2018, Yokohama, Japan

Abstract

We report stable and reproducible trapping of different micro and nanoparticles using a far field dual fiber tip optical tweezers. The tweezers properties are analyzed by studying the trapped particles residual Brownian motion. The trapping potential is harmonic and the trapping forces in transverse direction are typically three times larger with respect to axial direction. Interference fringe trapping is observed for 300 nm YAG particles. Depending on their length, NaYF4 nanorods are trapped in single or dual fiber tip configurations. Longest rods could be trapped with one single fiber tip at 5 μm away from tip. The experimental results are discussed using numerical simulations based on exact Maxwell Stress Tensor approach.

Citation Download Citation

Jochen Fick "Optical fiber nano-tweezers, a complementary approach for micro- and nanoparticle trapping", Proc. SPIE 10712, Optical Manipulation Conference, 1071207 (24 April 2018); https://doi.org/10.1117/12.2316567

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