Engineering Ultra-Low Power Optical Tweezers Using Ultrafast Optical Pulses

Krishangi Krishna; Joshua A. Burrow; Kimani C. Toussaint

doi:10.1364/FIO.2023.FW6C.4

Frontiers in Optics + Laser Science 2023 (FiO, LS)
Technical Digest Series (Optica Publishing Group, 2023),
paper FW6C.4
•https://doi.org/10.1364/FIO.2023.FW6C.4

Engineering Ultra-Low Power Optical Tweezers Using Ultrafast Optical Pulses

Krishangi Krishna, Joshua A. Burrow, and Kimani C. Toussaint

Frontiers in Optics 2023

Tacoma, Washington United States
9–12 October 2023
ISBN: 978-1-957171-29-6

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Ultrafast Optical Interactions in Nanostructured Materials (FW6C)

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K. Krishna, J. A. Burrow, and K. C. Toussaint, "Engineering Ultra-Low Power Optical Tweezers Using Ultrafast Optical Pulses," in Frontiers in Optics + Laser Science 2023 (FiO, LS), Technical Digest Series (Optica Publishing Group, 2023), paper FW6C.4.

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Abstract

Traditional optical tweezers rely on the use of continuous-wave laser sources with moderate to high optical powers, leading to unwanted thermal effects. Here, we demonstrate that a femtosecond laser can provide optical tweezing of microparticles using an average power as low as 20 µW.

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