TY - JOUR
T1 - Interactive manipulation of microparticles in an octagonal sonotweezer
AU - Bernassau, A.L.
AU - Courtney, C.R.P.
AU - Beeley, J.
AU - Drinkwater, B.W.
AU - Cumming, D.R.S.
PY - 2013/4/22
Y1 - 2013/4/22
N2 - An ultrasonic device for micro-patterning and precision manipulation of micrometre-scale particles is demonstrated. The device is formed using eight piezoelectric transducers shaped into an octagonal cavity. By exciting combinations of transducers simultaneously, with a controlled phase delay between them, different acoustic landscapes can be created, patterning micro-particles into lines, squares, and more complex shapes. When operated with all eight transducers the device can, with appropriate phase control, manipulate the two dimensional acoustic pressure gradient; it thus has the ability to position and translate a single tweezing zone to different locations on a surface in a precise and programmable manner.
AB - An ultrasonic device for micro-patterning and precision manipulation of micrometre-scale particles is demonstrated. The device is formed using eight piezoelectric transducers shaped into an octagonal cavity. By exciting combinations of transducers simultaneously, with a controlled phase delay between them, different acoustic landscapes can be created, patterning micro-particles into lines, squares, and more complex shapes. When operated with all eight transducers the device can, with appropriate phase control, manipulate the two dimensional acoustic pressure gradient; it thus has the ability to position and translate a single tweezing zone to different locations on a surface in a precise and programmable manner.
UR - http://www.scopus.com/inward/record.url?scp=84876993937&partnerID=8YFLogxK
UR - http://dx.doi.org/10.1063/1.4802754
U2 - 10.1063/1.4802754
DO - 10.1063/1.4802754
M3 - Article
AN - SCOPUS:84876993937
SN - 0003-6951
VL - 102
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 16
M1 - 164101
ER -