Particle manipulation with acoustic vortex beam induced by a brass plate with spiral shape structure

Tian Wang; Manzhu Ke; Weiping Li; Qian Yang; Chunyin Qiu; Zhengyou Liu

doi:10.1063/1.4963185

Particle manipulation with acoustic vortex beam induced by a brass plate with spiral shape structure

Applied Physics Letters ◽

10.1063/1.4963185 ◽

2016 ◽

Vol 109 (12) ◽

pp. 123506 ◽

Cited By ~ 37

Author(s):

Tian Wang ◽

Manzhu Ke ◽

Weiping Li ◽

Qian Yang ◽

Chunyin Qiu ◽

...

Keyword(s):

Vortex Beam ◽

Particle Manipulation ◽

Brass Plate ◽

Shape Structure ◽

Spiral Shape

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Review on fractional vortex beam

Nanophotonics ◽

10.1515/nanoph-2021-0616 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Hao Zhang ◽

Jun Zeng ◽

Xingyuan Lu ◽

Zhuoyi Wang ◽

Chengliang Zhao ◽

...

Keyword(s):

Optical Tweezers ◽

Theoretical Models ◽

Optical Devices ◽

Vortex Beam ◽

Edge Enhancement ◽

Particle Manipulation ◽

Complex Phase ◽

Communication Capacity ◽

Vortex Beams ◽

New Research

Abstract As an indispensable complement to an integer vortex beam, the fractional vortex beam has unique physical properties such as radially notched intensity distribution, complex phase structure consisting of alternating charge vortex chains, and more sophisticated orbital angular momentum modulation dimension. In recent years, we have noticed that the fractional vortex beam was widely used for complex micro-particle manipulation in optical tweezers, improving communication capacity, controllable edge enhancement of image and quantum entanglement. Moreover, this has stimulated extensive research interest, including the deep digging of the phenomenon and physics based on different advanced beam sources and has led to a new research boom in micro/nano-optical devices. Here, we review the recent advances leading to theoretical models, propagation, generation, measurement, and applications of fractional vortex beams and consider the possible directions and challenges in the future.

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Coherent electron nanodiffraction from clean silver nano particles in a UHV STEM

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010015112x ◽

1993 ◽

Vol 51 ◽

pp. 1058-1059

Author(s):

J. Liu ◽

M. Pan ◽

G. E. Spinnler

Keyword(s):

Supported Catalysts ◽

Imaging Techniques ◽

Nano Particles ◽

Metal Particles ◽

Shape Structure ◽

Dynamical Simulations ◽

Small Metal Particles ◽

Extract Information

Small metal particles have peculiar chemical and physical properties as compared to bulk materials. They are especially important in catalysis since metal particles are common constituents of supported catalysts. The structural characterization of small particles is of primary importance for the understanding of structure-catalytic activity relationships. The shape and size of metal particles larger than approximately 5 nm in diameter can be determined by several imaging techniques. It is difficult, however, to deduce the shape of smaller metal particles. Coherent electron nanodiffraction (CEND) patterns from nano particles contain information about the particle size, shape, structure and defects etc. As part of an on-going program of STEM characterization of supported catalysts we report some preliminary results of CEND study of Ag nano particles, deposited in situ in a UHV STEM instrument, and compare the experimental results with full dynamical simulations in order to extract information about the shape of Ag nano particles.

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Degradation of Compressive Properties of Composite Laminates Due to Spiral Shape Damage

JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES ◽

10.2322/jjsass.51.457 ◽

2003 ◽

Vol 51 (595) ◽

pp. 457-458

Author(s):

Hiroshi Suemasu ◽

Kenji Nakamura ◽

Takashi Ishikawa

Keyword(s):

Composite Laminates ◽

Compressive Properties ◽

Spiral Shape

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RECLAMATION AND CULVERT CROSSINGS MADE OF CORRUGATED PIPES ON SPAWNING STREAMS

Prirodoobustrojstvo ◽

10.26897/1997-6011-2020-5-68-77 ◽

2020 ◽

pp. 68-77

Author(s):

O.N. CHERNYKH ◽

◽

A.V. RBURLACHENKO

Keyword(s):

Single Point ◽

Experimental Studies ◽

Fish Passage ◽

Future Research ◽

Fish Stocks ◽

Metal Structures ◽

Natural Reproduction ◽

Spiral Shape ◽

Corrugated Metal ◽

Spawning Streams

Recommendations are presented for solving issues that arise in the design and operation of tubular transport crossings of corrugated metal structures through spawning streams while ensuring the safety and natural reproduction of fish stocks. There are discussed the results of experimental studies of culverts made of metal corrugated pipes with a normal and spiral shape of corrugation the bottom of which is buried and filled with suitable granular material to the level of the natural channel of a small watercourse. It is established that when 10% of the area of the corrugated pipe is occupied by stone filling, its throughput is reduced by about 10-12%. Based on the review of the existing literature and the results of laboratory experiments, data is provided to estimate the values of the roughness coefficients of the composite cross-section of a single-point junction and directions for future research on culvert reclamation are outlined. Studying of the structure of the velocity distribution in culverts can lead to the improved conditions for fish passage without installing special structural elements in the transit path of the fish passage structure.

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