Modeling the focusing of a radially-polarized laser beam with an initially flat-top intensity profile
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arXiv
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866917646992146432 |
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| author | Jolly, Spencer W. |
| author_facet | Jolly, Spencer W. |
| contents | Radially-polarized light beams present very interesting and useful behavior for creating small intensity spots when tightly-focused, and manipulating nanostructures or charged particles. The modeling of the propagation of such vector beams, however, is almost always done using the lowest-order fundamental radially-polarized beam due to the complexity of vector diffraction theory. We show how a flat-top radially-polarized beam can be modeled analytically using a sum of higher-order beams, and describe a number of interesting qualities, and compare to numerically-solved integral descriptions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_14185 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Modeling the focusing of a radially-polarized laser beam with an initially flat-top intensity profile Jolly, Spencer W. Optics Radially-polarized light beams present very interesting and useful behavior for creating small intensity spots when tightly-focused, and manipulating nanostructures or charged particles. The modeling of the propagation of such vector beams, however, is almost always done using the lowest-order fundamental radially-polarized beam due to the complexity of vector diffraction theory. We show how a flat-top radially-polarized beam can be modeled analytically using a sum of higher-order beams, and describe a number of interesting qualities, and compare to numerically-solved integral descriptions. |
| title | Modeling the focusing of a radially-polarized laser beam with an initially flat-top intensity profile |
| topic | Optics |
| url | https://arxiv.org/abs/2404.14185 |