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5 October 2023 Exploring dynamics of microparticle optical levitation upon launching in air
Kwan Seob Park, Kiana Malmir, Glenn E. Holland, Martin Y. Sohn, Thomas W. LeBrun
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Proceedings Volume PC12649, Optical Trapping and Optical Micromanipulation XX; PC126491E (2023) https://doi.org/10.1117/12.2678133
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States
Abstract
We present the dynamics of microparticle launching and loading into optical traps in air. To address repeatable launching and loading of particles into the trap remained as a stubborn obstacle to realization of robust trapping systems, we investigated launching and trapping mechanism, analyzing particle trajectories during the three phases of particle loading: vibration and launching from a substrate, entrainment into the trap with dissipation, and steady state trapping. We identify characteristics that can be exploited to enable more repeatable launching, including in situ measurement of adhesion or natural frequency and the existence of stable subharmonic modes of particle vibration.
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Kwan Seob Park, Kiana Malmir, Glenn E. Holland, Martin Y. Sohn, and Thomas W. LeBrun "Exploring dynamics of microparticle optical levitation upon launching in air", Proc. SPIE PC12649, Optical Trapping and Optical Micromanipulation XX, PC126491E (5 October 2023); https://doi.org/10.1117/12.2678133
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KEYWORDS
Quantum particles
Optical tweezers
Quantum systems
Vacuum
Vibration
Precision measurement
Quantum enhancement
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