منابع مشابه
Acoustic rainbow trapping
NSF Nano-scale Science and Engineering Center (NSEC), 3112 Etcheverry Hall, University of California, Berkeley, California 94720, USA, School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China, Departamento de Fisica Teorica de la Materia Condensada and Condensed Matter Phy...
متن کاملAcoustic rainbow trapping by coiling up space
We numerically realize the acoustic rainbow trapping effect by tapping an air waveguide with space-coiling metamaterials. Due to the high refractive-index of the space-coiling metamaterials, our device is more compact compared to the reported trapped-rainbow devices. A numerical model utilizing effective parameters is also calculated, whose results are consistent well with the direct numerical ...
متن کاملAcoustic trapping of active matter.
Confinement of living microorganisms and self-propelled particles by an external trap provides a means of analysing the motion and behaviour of active systems. Developing a tweezer with a trapping radius large compared with the swimmers' size and run length has been an experimental challenge, as standard optical traps are too weak. Here we report the novel use of an acoustic tweezer to confine ...
متن کاملCombined acoustic and optical trapping
Combining several methods for contact free micro-manipulation of small particles such as cells or micro-organisms provides the advantages of each method in a single setup. Optical tweezers, which employ focused laser beams, offer very precise and selective handling of single particles. On the other hand, acoustic trapping with wavelengths of about 1 mm allows the simultaneous trapping of many, ...
متن کاملAcoustic trapping in bubble-bounded micro-cavities
We present a method for controllably producing longitudinal acoustic trapping sites insidemicrofluidic 5 channels. Air bubbles are injected into amicro-capillary to create bubble-bounded ‘micro-cavities’. A cavity mode is formed that shows controlled longitudinal acoustic trapping between the two air/water interfaces along with the levitation to the centre of the channel that one would ex10 pec...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2013
ISSN: 2045-2322
DOI: 10.1038/srep01728