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Nonlinear trapping stiffness of mid-air single-axis acoustic levitators
(American Institute of Physics, 2018)
Artículo / Artikulua,
We describe and experimentally explore a nonlinear stiffness model of the trapping of a solid
particle in a single-axis acoustic levitator. In contrast to the commonly employed linear stiffness
assumption, our nonlinear ...
Automatic contactless injection, transportation, merging, and ejection of droplets with a multifocal point acoustic levitator
(AIP Publishing, 2018)
info:eu-repo/semantics/article,
We present an acoustic levitation system that automatically injects, transports, merges and ejects liquid droplets in mid-air. The system consists of a phased array operating at 40 kHz on top of a plane reflector. The phase ...
Acoustic lock: position and orientation trapping of non-spherical sub-wavelength particles in mid-air using a single-axis acoustic levitator
(American Institute of Physics, 2018)
Artículo / Artikulua,
We demonstrate acoustic trapping in both position and orientation of a non-spherical particle of
sub-wavelength size in mid-air. To do so, we multiplex in time a pseudo-one-dimensional vertical
standing wave and a ...
Acoustic virtual vortices with tunable orbital angular momentum for trapping of Mie particles
(American Physical Society, 2018)
Artículo / Artikulua,
Acoustic vortices can transfer angular momentum and trap particles. Here, we show that particles trapped in airborne acoustic vortices orbit at high speeds, leading to dynamic instability and ejection. We demonstrate stable ...