Standing-wave acoustic trap for nonintrusive positioning of microparticles
- 15 October 1995
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 78 (8) , 4845-4849
- https://doi.org/10.1063/1.359770
Abstract
A nonintrusive three-dimensional trap for microscopic particles in a Liquid is described. The trap is based on acoustic radiation forces in an ultrasonic confocal standing-wave cavity. Experiments at 11 MHz demonstrate the concept and verify the theoretically calculated forces. Theoretical calculations for higher-frequency systems indicate a significant potential for low-rms-displacement trapping of submicrometer particles, making the trap suitable for nonintrusive scanning near-field optical microscopy. (C) 1995 American Institute of PhysicsThis publication has 18 references indexed in Scilit:
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