Focused acoustic vortex generated by a circular array of planar sector transducers using an acoustic lens, and its application in object manipulation - Zhou, Chenchen; Wang, Qingdong; Pu, Shifu; Li, Yuzhi; Guo, Gepu; Chu, Hongyan; Ma, Qingyu; Tu, Juan; Zhang, Dong (Journal of applied physics, 2020)
Keywords: Acoustic waves; Acoustics; Arrays; Circularity; Computer simulation; Concentration gradient; Energy utilization; Lenses; Polyethylenes; Spirals; Transducers; Trapping