| Properties of off-axis hollow Gaussian–Schell model vortex beam propagating in turbulent atmosphere |
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| 引用本文： | 宋延嵩,董科研,常帅,董岩,张雷.Properties of off-axis hollow Gaussian–Schell model vortex beam propagating in turbulent atmosphere[J].中国物理 B,2020(6):230-236. |
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| 作者姓名： | 宋延嵩 董科研 常帅 董岩 张雷 |
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| 作者单位： | National and Local Joint Engineering Research Center of Space Optoelectronics Technology |
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| 基金项目： | Natural Science Foundation of Jilin Province,China(Grant No.20180101031JC);the Jilin Provincial Science Foundation for Basic Research,China(Grant No.2019C040-7). |
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| 摘 要： | The analytical expression of off-axis hollow Gaussian–Schell model vortex beam(HGSMVB)generated by anisotropic Gaussian–Schell model source is first introduced.The evolution properties of off-axis HGSMVB propagating in turbulent atmosphere are analyzed.The results show that the off-axis HGSMVB with smaller coherence length or propagating in stronger turbulent atmosphere will evolve from dark hollow beam into Gaussian-like beam with a larger beam spot faster.The beams with different values of integer order N or the position for hollow and vortex factor R will have almost the same Gaussian-like spot distribution at the longer propagation distance.
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| 关 键 词： | vortex beam off-axis beam Gaussian-Schell model sources laser propagation INTENSITY |
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