Spatial-Temporal Self-Focusing of Partially Coherent Pulsed Beams in Dispersive Medium
Partially coherent pulsed beams have many applications in pulse shaping, fiber optics, ghost imaging, etc. In this paper, a novel class of partially coherent pulsed (PCP) sources with circular spatial coherence distribution and sinc temporal coherence distribution is introduced. The analytic formula...
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| Format: | Article |
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MDPI AG
2019-09-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/17/3616 |
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| author | Zhiguo Zhao Chaoliang Ding Yongtao Zhang Liuzhan Pan |
| author_facet | Zhiguo Zhao Chaoliang Ding Yongtao Zhang Liuzhan Pan |
| author_sort | Zhiguo Zhao |
| collection | DOAJ |
| description | Partially coherent pulsed beams have many applications in pulse shaping, fiber optics, ghost imaging, etc. In this paper, a novel class of partially coherent pulsed (PCP) sources with circular spatial coherence distribution and sinc temporal coherence distribution is introduced. The analytic formula for the spatial-temporal intensity of pulsed beams generated by this kind of source in dispersive media is derived. The evolution behavior of spatial-temporal intensity of the pulsed beams in water and air is investigated, respectively. It is found that the pulsed beams exhibit spatial-temporal self-focusing behavior upon propagation. Furthermore, a physical interpretation of the spatial-temporal self-focusing phenomenon is given. This is a phenomenon of optical nonlinearity, which may have potential application in laser micromachining and laser filamentation. |
| first_indexed | 2024-12-23T05:13:46Z |
| format | Article |
| id | doaj.art-68ef16e41b494e199586ad522c7182ee |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-23T05:13:46Z |
| publishDate | 2019-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-68ef16e41b494e199586ad522c7182ee2022-12-21T17:58:53ZengMDPI AGApplied Sciences2076-34172019-09-01917361610.3390/app9173616app9173616Spatial-Temporal Self-Focusing of Partially Coherent Pulsed Beams in Dispersive MediumZhiguo Zhao0Chaoliang Ding1Yongtao Zhang2Liuzhan Pan3College of Physics and Electronic Information & Henan Key Laboratory of Electromagnetic Transformation and Detection, Luoyang Normal University, Luoyang 471934, ChinaCollege of Physics and Electronic Information & Henan Key Laboratory of Electromagnetic Transformation and Detection, Luoyang Normal University, Luoyang 471934, ChinaCollege of Physics and Electronic Information & Henan Key Laboratory of Electromagnetic Transformation and Detection, Luoyang Normal University, Luoyang 471934, ChinaCollege of Physics and Electronic Information & Henan Key Laboratory of Electromagnetic Transformation and Detection, Luoyang Normal University, Luoyang 471934, ChinaPartially coherent pulsed beams have many applications in pulse shaping, fiber optics, ghost imaging, etc. In this paper, a novel class of partially coherent pulsed (PCP) sources with circular spatial coherence distribution and sinc temporal coherence distribution is introduced. The analytic formula for the spatial-temporal intensity of pulsed beams generated by this kind of source in dispersive media is derived. The evolution behavior of spatial-temporal intensity of the pulsed beams in water and air is investigated, respectively. It is found that the pulsed beams exhibit spatial-temporal self-focusing behavior upon propagation. Furthermore, a physical interpretation of the spatial-temporal self-focusing phenomenon is given. This is a phenomenon of optical nonlinearity, which may have potential application in laser micromachining and laser filamentation.https://www.mdpi.com/2076-3417/9/17/3616coherence and statistical opticspropagationpartially coherentpulses |
| spellingShingle | Zhiguo Zhao Chaoliang Ding Yongtao Zhang Liuzhan Pan Spatial-Temporal Self-Focusing of Partially Coherent Pulsed Beams in Dispersive Medium Applied Sciences coherence and statistical optics propagation partially coherent pulses |
| title | Spatial-Temporal Self-Focusing of Partially Coherent Pulsed Beams in Dispersive Medium |
| title_full | Spatial-Temporal Self-Focusing of Partially Coherent Pulsed Beams in Dispersive Medium |
| title_fullStr | Spatial-Temporal Self-Focusing of Partially Coherent Pulsed Beams in Dispersive Medium |
| title_full_unstemmed | Spatial-Temporal Self-Focusing of Partially Coherent Pulsed Beams in Dispersive Medium |
| title_short | Spatial-Temporal Self-Focusing of Partially Coherent Pulsed Beams in Dispersive Medium |
| title_sort | spatial temporal self focusing of partially coherent pulsed beams in dispersive medium |
| topic | coherence and statistical optics propagation partially coherent pulses |
| url | https://www.mdpi.com/2076-3417/9/17/3616 |
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