Optical fiber tip tweezers, a complementary approach for nanoparticle trapping

Godefroy Leménager; Khalid Lahlil; Thierry Gacoin; Gérard Colas des Francs; Jochen Fick

doi:10.1117/1.JNP.13.012505

8 October 2018 Optical fiber tip tweezers, a complementary approach for nanoparticle trapping

Godefroy Leménager, Khalid Lahlil, Thierry Gacoin, Gérard Colas des Francs, Jochen Fick

Author Affiliations +

Journal of Nanophotonics, Vol. 13, Issue 1, 012505 (October 2018). https://doi.org/10.1117/1.JNP.13.012505

Abstract

Nanoparticles of different compositions, sizes, and shapes are elaborated and trapped in a reproducible and stable manner using our optical fiber tip tweezers. Here we report trapping of spherical YAG : Ce^3 + particles of 300 and 60 nm diameters and of NaYF₄ : Er^3 +, Yb^3 + nanorods of lengths from 640 nm to 1.9 μm. The properties of the tweezers are analyzed by video observations using Boltzmann statistics and power spectra analysis. Efficient trapping is found for the spherical particles and the small nanorods, whereas the large nanorods are efficiently trapped with only one fiber tip. The optical emission of a trapped nanorod completes the experimental results. Force calculations using the exact Maxwell stress tensor formalism are conducted to explain the experimental observations.

Citation Download Citation

Godefroy Leménager, Khalid Lahlil, Thierry Gacoin, Gérard Colas des Francs, and Jochen Fick "Optical fiber tip tweezers, a complementary approach for nanoparticle trapping," Journal of Nanophotonics 13(1), 012505 (8 October 2018). https://doi.org/10.1117/1.JNP.13.012505

Received: 29 June 2018; Accepted: 6 September 2018; Published: 8 October 2018

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