Chen, Haotian;
Lin, Huichuan;
Jones, PH;
Chen, Ziyang;
Luo, Songjie;
Pu, Jixiong;
(2022)
Influence of slow light effect on trapping force in optical tweezers.
Optics Letters
, 47
(3)
pp. 710-713.
10.1364/OL.448727.
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Abstract
We investigate the optical trapping of polystyrene microspheres in optical tweezers. The transverse capture gradient forces of polystyrene microspheres with different numerical aperture are theoretically and experimentally evaluated by the power spectral density roll-off method. It is found that the trapping force of the experimental measurement is much stronger than that of the theoretical results. The discordance is attributed to the slow light effect near the focus, which has been found in recent years [Science 347, 857 (2015); Opt. Express 18, 10822 (2010); Opt. Commun. 332, 164 (2014)]. The modified trapping force of the theoretical results by considering the slow light effect near the focus is well consistent with that of the experimental results.
| Type: | Article |
|---|---|
| Title: | Influence of slow light effect on trapping force in optical tweezers |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1364/OL.448727 |
| Publisher version: | https://doi.org/10.1364/OL.448727 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10144047 |
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