Generation of High-Purity Laguerre–Gaussian Beams by Spatial Filtering
We theoretically and experimentally demonstrate that high-purity Laguerre-Gaussian beams can be efficiently obtained from Gaussian vortex beams using a typical 4F spatial filtering optical system, in which spatial filtering does not affect the spiral phase and the energy loss is very small. In the F...
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IEEE
2019-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8693508/ |
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doaj-70b2b8150afb43bdabc9addc3869ec3a2021-03-29T17:53:48ZengIEEEIEEE Photonics Journal1943-06552019-01-0111311010.1109/JPHOT.2019.29116218693508Generation of High-Purity Laguerre–Gaussian Beams by Spatial FilteringWangjun Pan0https://orcid.org/0000-0002-7285-3104Lu Xu1Jinfeng Li2Xiaoyan Liang3State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai, ChinaState Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai, ChinaState Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai, ChinaState Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai, ChinaWe theoretically and experimentally demonstrate that high-purity Laguerre-Gaussian beams can be efficiently obtained from Gaussian vortex beams using a typical 4F spatial filtering optical system, in which spatial filtering does not affect the spiral phase and the energy loss is very small. In the Fourier frequency domain, aperture filtering specifically removes the high-frequency component corresponding to the central singularity region. In the spatial domain, aperture filtering corresponds to a convolution, which can smooth the central singularity region. This approach is simple and effective and has practical implementations in the generation and amplification of relativistic vortex beams.https://ieeexplore.ieee.org/document/8693508/Laguerre–Gaussian beamsspatial filteringvortex beams |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Wangjun Pan Lu Xu Jinfeng Li Xiaoyan Liang |
| spellingShingle |
Wangjun Pan Lu Xu Jinfeng Li Xiaoyan Liang Generation of High-Purity Laguerre–Gaussian Beams by Spatial Filtering IEEE Photonics Journal Laguerre–Gaussian beams spatial filtering vortex beams |
| author_facet |
Wangjun Pan Lu Xu Jinfeng Li Xiaoyan Liang |
| author_sort |
Wangjun Pan |
| title |
Generation of High-Purity Laguerre–Gaussian Beams by Spatial Filtering |
| title_short |
Generation of High-Purity Laguerre–Gaussian Beams by Spatial Filtering |
| title_full |
Generation of High-Purity Laguerre–Gaussian Beams by Spatial Filtering |
| title_fullStr |
Generation of High-Purity Laguerre–Gaussian Beams by Spatial Filtering |
| title_full_unstemmed |
Generation of High-Purity Laguerre–Gaussian Beams by Spatial Filtering |
| title_sort |
generation of high-purity laguerre–gaussian beams by spatial filtering |
| publisher |
IEEE |
| series |
IEEE Photonics Journal |
| issn |
1943-0655 |
| publishDate |
2019-01-01 |
| description |
We theoretically and experimentally demonstrate that high-purity Laguerre-Gaussian beams can be efficiently obtained from Gaussian vortex beams using a typical 4F spatial filtering optical system, in which spatial filtering does not affect the spiral phase and the energy loss is very small. In the Fourier frequency domain, aperture filtering specifically removes the high-frequency component corresponding to the central singularity region. In the spatial domain, aperture filtering corresponds to a convolution, which can smooth the central singularity region. This approach is simple and effective and has practical implementations in the generation and amplification of relativistic vortex beams. |
| topic |
Laguerre–Gaussian beams spatial filtering vortex beams |
| url |
https://ieeexplore.ieee.org/document/8693508/ |
| work_keys_str_mv |
AT wangjunpan generationofhighpuritylaguerrex2013gaussianbeamsbyspatialfiltering AT luxu generationofhighpuritylaguerrex2013gaussianbeamsbyspatialfiltering AT jinfengli generationofhighpuritylaguerrex2013gaussianbeamsbyspatialfiltering AT xiaoyanliang generationofhighpuritylaguerrex2013gaussianbeamsbyspatialfiltering |
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