Generation of topologically diverse acoustic vortex beams with same divergence angle using discrete active helical arrays
In the process of multiplexing acoustic orbital angular momentum to realize underwater acoustic communication, the demodulation process is always affected by the larger divergence angle of higher-order acoustic vortex beams. To restrain the influences of this problem, proposed here are discrete acti...
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| Veröffentlicht in: | Journal of applied physics 2021-08, Vol.130 (6) |
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| container_title | Journal of applied physics |
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| creator | Lu, Wei Sun, Hao Lan, Yu Guo, Rongzhen |
| description | In the process of multiplexing acoustic orbital angular momentum to realize underwater acoustic communication, the demodulation process is always affected by the larger divergence angle of higher-order acoustic vortex beams. To restrain the influences of this problem, proposed here are discrete active helical arrays with different heights and radii to generate topologically diverse underwater acoustic vortex beams, and the reasons for the different divergence angles of acoustic vortex beams with different orders are analyzed. In finite-element analysis and experiments, the same divergence angle of acoustic vortex beams with different orders is obtained, and an effective method is provided for emitting underwater acoustic vortex beams. The proposed design has potential applications in underwater acoustic communication. |
| doi_str_mv | 10.1063/5.0050703 |
| format | Article |
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To restrain the influences of this problem, proposed here are discrete active helical arrays with different heights and radii to generate topologically diverse underwater acoustic vortex beams, and the reasons for the different divergence angles of acoustic vortex beams with different orders are analyzed. In finite-element analysis and experiments, the same divergence angle of acoustic vortex beams with different orders is obtained, and an effective method is provided for emitting underwater acoustic vortex beams. The proposed design has potential applications in underwater acoustic communication.</description><identifier>ISSN: 0021-8979</identifier><identifier>EISSN: 1089-7550</identifier><identifier>DOI: 10.1063/5.0050703</identifier><identifier>CODEN: JAPIAU</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Acoustics ; Angular momentum ; Applied physics ; Arrays ; Computational fluid dynamics ; Demodulation ; Electron beams ; Finite element method ; Multiplexing ; Underwater acoustics ; Underwater communication ; Vortices</subject><ispartof>Journal of applied physics, 2021-08, Vol.130 (6)</ispartof><rights>Author(s)</rights><rights>2021 Author(s). 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The proposed design has potential applications in underwater acoustic communication.</description><subject>Acoustics</subject><subject>Angular momentum</subject><subject>Applied physics</subject><subject>Arrays</subject><subject>Computational fluid dynamics</subject><subject>Demodulation</subject><subject>Electron beams</subject><subject>Finite element method</subject><subject>Multiplexing</subject><subject>Underwater acoustics</subject><subject>Underwater communication</subject><subject>Vortices</subject><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqd0MFKAzEQBuAgCtbqwTcIeFJYnSSdZnMU0SoIXvS8pNlJu2W7qUla7du7tQXvngaGb_6Bn7FLAbcCxuoObwEQNKgjNhBQmkIjwjEbAEhRlEabU3aW0gJAiFKZAdtOqKNocxM6HjzPYRXaMGucbdstr5sNxUTcurBOuXF8E2Kmbz4lu0z8q8lznuyS9m5GnetpN2uJr1PTzfp1cpHy7j73gs-p3QVzG6PdpnN24m2b6OIwh-zj6fH94bl4fZu8PNy_Fk5JnQtJztRjTcqPhEBbIk41IAowXtVjh8qjp1JLIxUaobEG6UbOy9HYi5FHo4bsap-7iuFzTSlXi7COXf-ykogGpQaDvbreKxdDSpF8tYrN0sZtJaDaNVthdWi2tzd7m1yTf6v7H-7b_IPVqvbqBzwCiEs</recordid><startdate>20210814</startdate><enddate>20210814</enddate><creator>Lu, Wei</creator><creator>Sun, Hao</creator><creator>Lan, Yu</creator><creator>Guo, Rongzhen</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-2814-5899</orcidid><orcidid>https://orcid.org/0000-0002-4147-8946</orcidid><orcidid>https://orcid.org/0000-0003-0148-4871</orcidid><orcidid>https://orcid.org/0000-0003-2759-5385</orcidid></search><sort><creationdate>20210814</creationdate><title>Generation of topologically diverse acoustic vortex beams with same divergence angle using discrete active helical arrays</title><author>Lu, Wei ; Sun, Hao ; Lan, Yu ; Guo, Rongzhen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c327t-2ec9d67e3f4115a855b7055109f3d6c53f5fe87292359175d02c4cf246f14f593</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Acoustics</topic><topic>Angular momentum</topic><topic>Applied physics</topic><topic>Arrays</topic><topic>Computational fluid dynamics</topic><topic>Demodulation</topic><topic>Electron beams</topic><topic>Finite element method</topic><topic>Multiplexing</topic><topic>Underwater acoustics</topic><topic>Underwater communication</topic><topic>Vortices</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lu, Wei</creatorcontrib><creatorcontrib>Sun, Hao</creatorcontrib><creatorcontrib>Lan, Yu</creatorcontrib><creatorcontrib>Guo, Rongzhen</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of applied physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lu, Wei</au><au>Sun, Hao</au><au>Lan, Yu</au><au>Guo, Rongzhen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Generation of topologically diverse acoustic vortex beams with same divergence angle using discrete active helical arrays</atitle><jtitle>Journal of applied physics</jtitle><date>2021-08-14</date><risdate>2021</risdate><volume>130</volume><issue>6</issue><issn>0021-8979</issn><eissn>1089-7550</eissn><coden>JAPIAU</coden><abstract>In the process of multiplexing acoustic orbital angular momentum to realize underwater acoustic communication, the demodulation process is always affected by the larger divergence angle of higher-order acoustic vortex beams. 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| language | eng |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Acoustics Angular momentum Applied physics Arrays Computational fluid dynamics Demodulation Electron beams Finite element method Multiplexing Underwater acoustics Underwater communication Vortices |
| title | Generation of topologically diverse acoustic vortex beams with same divergence angle using discrete active helical arrays |
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