Journal
NEW JOURNAL OF PHYSICS
Volume 11, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1367-2630/11/10/103029
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Funding
- National Natural Science Foundation of China [10674050, 10904041]
- Specialized Research Fund for the Doctoral Program of Higher Education [20060574006]
- Program for Innovative Research Team of the Higher Education in Guangdong [06CXTD005]
- Higher Education in Guangdong [C10087]
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We have presented a novel family of paraxial laser beams, which are called Airy complex variable function Gaussian (ACVF-Gaussian) beams. The ACVF-Gaussian beams are formed by the product of an Airy complex variable function and a Gaussian function. Unlike Airy-Gaussian beams, which are nondiffracting, the ACVF-Gaussian beams, which have a rotating phase term are diffracting and rotating. The rotating velocity decreases when the propagation distance increases. We have analyzed the evolution of the Poynting vector and angular momentum density of the ACVF-Gaussian beams as they propagate in free space.
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