Active, controlled circular, and spin-rotational movement of optically trapped airborne micro-particles

Jessica A. Arnold; Aimable Kalume; Chuji Wang; Gorden Videen; Gorden Videen; Gorden Videen; Gorden Videen; Yong-Le Pan

doi:10.1364/OL.443506

Optics Letters
Vol. 46,
Issue 21,
pp. 5332-5335
(2021)
•https://doi.org/10.1364/OL.443506

Active, controlled circular, and spin-rotational movement of optically trapped airborne micro-particles

Jessica A. Arnold, Aimable Kalume, Chuji Wang, Gorden Videen, and Yong-Le Pan

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Jessica A. Arnold, Aimable Kalume, Chuji Wang, Gorden Videen, and Yong-Le Pan, "Active, controlled circular, and spin-rotational movement of optically trapped airborne micro-particles," Opt. Lett. 46, 5332-5335 (2021)

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- Optical Devices
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About this Article
History
- Original Manuscript: September 17, 2021
- Manuscript Accepted: September 27, 2021
- Published: October 20, 2021

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Abstract

We present a novel method for actively controlling circular and/or spin-rotational motion of an optically trapped airborne micro-particle. A 532-nm Gaussian laser beam is shaped into an elliptical ring by a pair of axicons and a cylindrical lens. The shaped beam is then focused into an elliptic cone that produces an optical trap. As the cylindrical lens is rotated, a torque is exerted on the trapped particle, resulting in circular or spin-rotational motion. We show examples of the circular-rotational movement as a function of laser power and the rotation rate of the cylindrical lens.

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Supplementary Material (7)

Name	Description
Visualization 1	Visualization 1 associated with Figure 2
Visualization 2	Visualization 2 associated with Figure 2
Visualization 3	Visualization 3 associated with Figure 3
Visualization 4	Visualization 4 associated with Figure 3
Visualization 5	Visualization 5 associated with Figure 3
Visualization 6	Visualization 6 associated with Figure 3
Visualization 7	Visualization 7 associated with Figure 4

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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