scholarly journals Measurements of the force fields within an acoustic standing wave using holographic optical tweezers

2014 ◽  
Vol 104 (16) ◽  
pp. 163504 ◽  
Author(s):  
P. G. Bassindale ◽  
D. B. Phillips ◽  
A. C. Barnes ◽  
B. W. Drinkwater
Keyword(s):  
Standing Wave ◽  
Optical Tweezers ◽  
Force Fields ◽  
Acoustic Standing Wave ◽  
Holographic Optical Tweezers

scholarly journals Analysis of the effects of acoustic levitation to simulate the microgravity environment on the development of early zebrafish embryos

RSC Advances ◽  
2020 ◽  
Vol 10 (72) ◽  
pp. 44593-44600
Author(s):  
Li Li ◽  
Ning Gu ◽  
Huijuan Dong ◽  
Bingsheng Li ◽  
Kenneth T. V. G.
Keyword(s):  
Wave Field ◽  
Standing Wave ◽  
Development Stage ◽  
Microgravity Environment ◽  
Acoustic Levitation ◽  
Zebrafish Embryos ◽  
Acoustic Standing Wave ◽  
Standing Wave Field

Influence of acoustic standing wave field creating acoustic levitation, on each development stage of early zebrafish embryos has been studied.

Moving average process underlying the holographic–optical–tweezers experiments

2014 ◽  
Vol 53 (10) ◽  
pp. B254 ◽  
Author(s):  
Jakub Ślęzak ◽  
Sławomir Drobczyński ◽  
Karina Weron ◽  
Jan Masajada
Keyword(s):  
Optical Tweezers ◽  
Moving Average ◽  
Average Process ◽  
Moving Average Process ◽  
Holographic Optical Tweezers

scholarly journals Precise, contactless measurements of the surface tension of picolitre aerosol droplets

2016 ◽  
Vol 7 (1) ◽  
pp. 274-285 ◽  
Author(s):  
Bryan R. Bzdek ◽  
Rory M. Power ◽  
Stephen H. Simpson ◽  
Jonathan P. Reid ◽  
C. Patrick Royall
Keyword(s):  
Surface Tension ◽  
Optical Tweezers ◽  
Holographic Optical Tweezers ◽  
Contactless Measurements

Precise measurements of the surface tension and viscosity of airborne picolitre droplets can be accomplished using holographic optical tweezers.

Aberration correction in holographic optical tweezers using a high-order optical vortex: publisher’s note

2018 ◽  
Vol 57 (17) ◽  
pp. 4857
Author(s):  
Yansheng Liang ◽  
Yanan Cai ◽  
Zhaojun Wang ◽  
Ming Lei ◽  
Zhiliang Cao ◽  
...  
Keyword(s):  
Optical Tweezers ◽  
Optical Vortex ◽  
High Order ◽  
Aberration Correction ◽  
Holographic Optical Tweezers

Effect of the Separation Distance on the Aeroacoustic Source of Multiple Shallow Cavities

2018 ◽  
Vol 141 (1) ◽  
Author(s):  
Ayman A. Shaaban ◽  
Samir Ziada
Keyword(s):  
Standing Wave ◽  
Separation Distance ◽  
Destructive Interference ◽  
Acoustic Standing Wave ◽  
Separation Ratio ◽  
Sound Levels ◽  
Standing Wave Method ◽  
Image Velocimetry ◽  
Strong Source ◽  
Shallow Cavities

Flow over ducted shallow cavities can excite fluid resonant oscillations. A common industrial application is the flow in corrugated pipes that can be modeled as a series of consecutive shallow cavities. In the current study, the effect of the separation distance on the aeroacoustic source of multiple shallow cavities is investigated. The standing wave method (SWM) is used to measure the source, where multiple microphones reconstruct the acoustic standing wave upstream and downstream of the cavities. The effect of the ratio between the separation distance to cavity length is investigated for a practical range from 0.5 to 1.375 for two- and three-cavity configurations. At low and intermediate sound levels, constructive hydrodynamic interference, resulting in a strong source, is observed for the extremum spacing ratios of 0.5 and 1.375. However, at high excitation levels, 10% and higher, the source, slightly but consistently, decreases upon increasing the separation ratio. These trends persist for both the double- and triple-cavity configurations. On the other hand, the separation distance of destructive interference is found to depend on the number of cavities of the tested configuration. Particle image velocimetry (PIV) measurements of the constructive interference cases show strong synchronized vorticity shedding in all cavities. Each cavity contribution to the total aeroacoustic source is then examined by means of Howe's analogy, and the percentage contribution of each cavity is found to depend on the excitation level.

Wavefront engineering and holographic optical tweezers

2015 ◽  
pp. 319-344
Author(s):  
Philip Jones ◽  
Onofrio Marago ◽  
Giovanni Volpe
Keyword(s):  
Optical Tweezers ◽  
Holographic Optical Tweezers

scholarly journals Assembly of 3-dimensional structures using programmable holographic optical tweezers

2004 ◽  
Vol 12 (22) ◽  
pp. 5475 ◽  
Author(s):  
Gavin Sinclair ◽  
Pamela Jordan ◽  
Johannes Courtial ◽  
Miles Padgett ◽  
Jon Cooper ◽  
...  
Keyword(s):  
Optical Tweezers ◽  
3 Dimensional ◽  
Holographic Optical Tweezers
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