Artikel ; Online: Nano-optical trapping using an all-dielectric optical fiber supporting a TEM-like mode.
2021 Band 33, Heft 4
Abstract: Fiber optical tweezers benefit from compact structures and compatibility with fiber optic technology, however, trapping of nano-objects are rarely demonstrated. Here, we predict stable optical trapping of a 30 nm polystyrene particle using an all- ... ...
Abstract | Fiber optical tweezers benefit from compact structures and compatibility with fiber optic technology, however, trapping of nano-objects are rarely demonstrated. Here, we predict stable optical trapping of a 30 nm polystyrene particle using an all-dielectric coaxial optical fiber supporting an axisymmetric TEM-like mode. We demonstrate, via comprehensive finite-difference time-domain simulations, that the trapping behavior arises from a significant shift of the fiber-end-fire radiation directivity originated from the nanoparticle-induced symmetry breaking, rather than the gradient force which assumes an invariant optical field. Fabrication of the fiber involved is entirely feasible with existing techniques, such as thermal-drawn and electrospinning, and therefore can be mass-produced. |
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Sprache | Englisch |
Erscheinungsdatum | 2021-11-02 |
Erscheinungsland | England |
Dokumenttyp | Journal Article |
ZDB-ID | 1362365-5 |
ISSN | 1361-6528 ; 0957-4484 |
ISSN (online) | 1361-6528 |
ISSN | 0957-4484 |
DOI | 10.1088/1361-6528/ac2766 |
Datenquelle | MEDical Literature Analysis and Retrieval System OnLINE |
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