New type of curved acoustic beams to provide manipulations with nanoparticles

Scientists of Tomsk Polytechnic University and Tomsk State University jointly with their colleagues from Spain modeled and experimentally confirmed the existence of a new type of curved acoustic wave beams -- acoustical hooks. They constitute a curved acoustical stream with an important property to bend at a distance less than a wavelength. Thereby, they could become a promising tool to provide ultrasonic manipulations with particles at an extra-small distance -- at a sub-wave level.