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| Research on the Transmission of Vortex Beamsin Water Flows of Different Velocities |
| CHONG Hua, MA Jingxin,LI Benxu,TAN Mingbo,ZHU Jiangzhuan*,XU Fei,QI Yihong
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School of Physics,East China University of Science and Technology,Shanghuai 200237, China
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Abstract Ｔｈｅ ｖｏｒｔｅｘ ｂｅａｍ ｃａｒｒｙｉｎｇ ｏｒｂｉｔａｌ ａｎｇｕｌａｒ ｍｏｍｅｎｔｕｍ ｍｏｄｅ ｐｒｏｖｉｄｅｓ ａ ｎｅｗ ｍｕｌｔｉｐｌｅｘｉｎｇ ｄｉｍｅｎｓｉｏｎ
ｆｏｒ ｏｐｔｉｃａｌ ｃｏｍｍｕｎｉｃａｔｉｏｎ ａｎｄ ｏｐｔｉｃａｌ ｉｎｆｏｒｍａｔｉｏｎ ｐｒｏｃｅｓｓｉｎｇ． Ｔｏ ｆｕｒｔｈｅｒ ｅｘｐａｎｄ ｔｈｅ ａｐｐｌｉｃａｔｉｏｎ ｏｆ ｖｏｒｔｅｘ
ｂｅａｍｓ，ｔｈｅ ｔｒａｎｓｍｉｓｓｉｏｎ ｃｈａｒａｃｔｅｒｉｓｔｉｃｓ ｏｆ ｖｏｒｔｅｘ ｂｅａｍｓ ｕｎｄｅｒ ｄｉｆｆｅｒｅｎｔ ｅｎｖｉｒｏｎｍｅｎｔｓ ａｎｄ ｃｏｍｐｌｅｘ ｃｏｎｄｉｔｉｏｎｓ
ｈａｖｅ ａｔｔｒａｃｔｅｄ ｗｉｄｅｓｐｒｅａｄ ｒｅｓｅａｒｃｈ ｉｎｔｅｒｅｓｔ．Ｔｈｉｓ ａｒｔｉｃｌｅ ｉｎｖｅｓｔｉｇａｔｅｓ ｔｈｅ ｔｒａｎｓｍｉｓｓｉｏｎ ｃｈａｒａｃｔｅｒｉｓｔｉｃｓ ｏｆ ｖｏｒｔｅｘ
ｂｅａｍｓ ｃａｒｒｙｉｎｇ ｉｎｔｅｇｅｒ ａｎｄ ｆｒａｃｔｉｏｎａｌ ｏｒｂｉｔａｌ ａｎｇｕｌａｒ ｍｏｍｅｎｔｕｍ ｉｎ ｗａｔｅｒ ａｔ ｄｉｆｆｅｒｅｎｔ ｆｌｏｗ ｒａｔｅｓ ｂｙ ｃｏｎｓｔｒｕｃｔｉｎｇ
ａｎ ｏｐｔｉｃａｌ ｐａｔｈ ｉｎ ａ ｌａｂｏｒａｔｏｒｙ．Ｉｎ ｔｈｅ ｅｘｐｅｒｉｍｅｎｔ，ａ ｓｐａｃｅ ｌｉｇｈｔ ｍｏｄｕｌａｔｏｒ ｗａｓ ｕｓｅｄ ｔｏ ｓｉｍｕｌａｔｅ ａ ｃｒｏｓｓ ｓｈａｐｅｄ
ｇｒａｔｉｎｇ ｔｏ ｇｅｎｅｒａｔｅ ｖｏｒｔｅｘ ｌｉｇｈｔ ｗｉｔｈ ｄｉｆｆｅｒｅｎｔ ｏｒｂｉｔａｌ ａｎｇｕｌａｒ ｍｏｍｅｎｔｕｍ．Ｔｈｅ ｖｏｒｔｅｘ ｌｉｇｈｔ ｗａｓ ｇｅｎｅｒａｔｅｄ ｉｎ ａ
ｗａｔｅｒ ｅｎｖｉｒｏｎｍｅｎｔ ｗｉｔｈ ｄｉｆｆｅｒｅｎｔ ｆｌｏｗ ｖｅｌｏｃｉｔｉｅｓ ｔｈｒｏｕｇｈ ｍｏｔｏｒ ｃｏｎｔｒｏｌ．Ｔｈｅ ｄｉｓｔｒｉｂｕｔｉｏｎ ｏｆ ｖｏｒｔｅｘ ｌｉｇｈｔ ｆｉｅｌｄ ａｆｔｅｒ
ｐａｓｓｉｎｇ ｔｈｒｏｕｇｈ ｔｈｅ ｗａｔｅｒ ｅｎｖｉｒｏｎｍｅｎｔ ｗａｓ ｓｔｕｄｉｅｄ，ａｎｄ ｉｔｓ ｏｒｂｉｔａｌ ａｎｇｕｌａｒ ｍｏｍｅｎｔｕｍ ｗａｓ ｍｅａｓｕｒｅｄ．Ｔｈｅ ｒｅｓｕｌｔｓ
ｉｎｄｉｃａｔｅ ｔｈａｔ ｕｎｄｅｒ ｄｉｆｆｅｒｅｎｔ ｗａｔｅｒ ｆｌｏｗ ｅｎｖｉｒｏｎｍｅｎｔｓ，ｔｈｅ ｄｉｓｔｒｉｂｕｔｉｏｎ ｏｆ ｔｈｅ ｖｏｒｔｅｘ ｏｐｔｉｃａｌ ｆｉｅｌｄ ｉｓ ｏｎｌｙ ｓｌｉｇｈｔｌｙ
ｄｉｓｔｕｒｂｅｄ ｄｕｅ ｔｏ ｃｈａｎｇｅｓ ｉｎ ｒｅｆｒａｃｔｉｖｅ ｉｎｄｅｘ，ｗｈｉｌｅ ｔｈｅ ｏｒｂｉｔａｌ ａｎｇｕｌａｒ ｍｏｍｅｎｔｕｍ ｉｎｆｏｒｍａｔｉｏｎ ｃａｒｒｉｅｄ ｂｙ ｉｔ
ｒｅｍａｉｎｓ ｕｎｃｈａｎｇｅｄ．Ｔｈｉｓ ｒｅｓｅａｒｃｈ ｗｏｒｋ ｃａｎ ｐｒｏｖｉｄｅ ｓｏｍｅ
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Published: 25 December 2025
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| [1] |
WANG Zhiping, CHEN Junfei, wU Wei, LÃ Liang, HU Zhijia.
Experimental Teaching of On-off Control of VortexLight Induced by Optical Pumping
[J]. Physical Experiment of College, 2024, 37(3): 45-49. |
| [2] |
QI Yihong, YANG Han, WANG Runbing, XING Haoru, WANG Peng.
Experimental Study on Generation of the FractionalOptical Vortex by the Fork Grating Method
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