Long-Distance Opto-Thermoelectric Pulling and Trapping (IMAGE)
Caption
a, Schematic showing the experimental setup for OTEP based on a laser-coupled optical fibre. b, Long-distance opto-thermoelectric trapping of 500 nm Si particles using a tapered single-mode optical fibre. c, OTEP trajectories (left) and probability distributions of the pulling velocities (right) of 800 nm Si particles in a 1 mM CTAC solution at optical intensities ranging from 6.6 to 39.4 ¦ÌW ¦Ìm-2. Individual frames from the recorded one-minute real-time videos were used to create the long-exposure images in the left panel. d, The maximum OTEP velocity of 800 nm Si particles as a function of the maximum optical intensity. The 800 nm Si particles are pulled by an multiple-mode optical fibre with a diameter of 50 ¦Ìm and an NA of 0.1 in c-d. The CTAC concentration was 1 mM. The optical intensities were calculated at the fibre tips. Scale bars: 5 ¦Ìm (b); 200 ¦Ìm (c).
Credit
by Linhan Lin, Pavana Siddhartha Kollipara, Abhay Kotnala, Taizhi Jiang, Yaoran Liu, Xiaolei Peng, Brian A. Korgel, and Yuebing Zheng
Usage Restrictions
None
License
Licensed content