Acoustic levitators are becoming increasingly common research instrumentation for contact-
free, lab-in-a-droplet studies. Recently, levitators that employ multiple, small, ultrasonic …

Recently, acoustic levitation of a wavelength-sized spherical object using a general-purpose
ultrasonic transducer array was demonstrated. In this article, the possibility of extending the …

Contact-free studies allow the investigation of surface and interfacial phenomena without the
shortcomings of surface-induced effects. In comparison to other contactfree techniques, an …

A method has been developed for calculating the acoustic radiation force acting on a small
spherical bead in a sound field within a rigid boundary cylindrical cavity, using a modal …

We propose a method to generate an acoustical levitation trap at the same time as
suppressing the sound in a multi-wavelength region of space. The method uses a spherical …

An ultrasonic acoustic levitator is a device that allows the implementation of contact-free
studies by generating an airborne acoustic pressure field, capable of trapping, in mid-air …