Exploring the Femtosecond Filamentation Threshold in Liquid Media Using a Mach–Zehnder Interferometer
We experimentally studied the supercontinuum induced by femtosecond filamentation in different liquid media. Using a Mach–Zehnder interferometer, we determined the relative filamentation thresholds (<i>P</i><sub>th</sub>) of these media. Research has shown that the value of t...
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MDPI AG
2023-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/22/9163 |
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| author | Yun Zhang Yu Xia Canneng Liang Anmin Chen Suyu Li Mingxing Jin |
| author_facet | Yun Zhang Yu Xia Canneng Liang Anmin Chen Suyu Li Mingxing Jin |
| author_sort | Yun Zhang |
| collection | DOAJ |
| description | We experimentally studied the supercontinuum induced by femtosecond filamentation in different liquid media. Using a Mach–Zehnder interferometer, we determined the relative filamentation thresholds (<i>P</i><sub>th</sub>) of these media. Research has shown that the value of the filamentation threshold is greater than that of <i>P</i><sub>cr</sub> (critical power for self-focusing), which can mainly be attributed to the strong dispersion effect. Changing the focal length of the focusing lens affects filamentation dynamics, thereby affecting the measured results regarding the filamentation threshold. With shorter focal lengths, the linear focusing (i.e., geometrical focusing) regime dominates, and the measured values of <i>P</i><sub>th</sub> for different liquid media are almost the same; as the focal length becomes larger, self-focusing starts to play a role, making the values of <i>P</i><sub>th</sub> for different media different from each other. This study presents an efficient method for investigating the femtosecond filamentation phenomenon in liquid media, helpful to provide further insights into the physical mechanism of supercontinuum generation via femtosecond filamentation in liquid media. |
| first_indexed | 2024-03-09T16:28:12Z |
| format | Article |
| id | doaj.art-2297a2a4b5174592af00e44fb2437e8f |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T16:28:12Z |
| publishDate | 2023-11-01 |
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| series | Sensors |
| spelling | doaj.art-2297a2a4b5174592af00e44fb2437e8f2023-11-24T15:05:34ZengMDPI AGSensors1424-82202023-11-012322916310.3390/s23229163Exploring the Femtosecond Filamentation Threshold in Liquid Media Using a Mach–Zehnder InterferometerYun Zhang0Yu Xia1Canneng Liang2Anmin Chen3Suyu Li4Mingxing Jin5Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, ChinaInstitute of Atomic and Molecular Physics, Jilin University, Changchun 130012, ChinaInstitute of Atomic and Molecular Physics, Jilin University, Changchun 130012, ChinaInstitute of Atomic and Molecular Physics, Jilin University, Changchun 130012, ChinaInstitute of Atomic and Molecular Physics, Jilin University, Changchun 130012, ChinaInstitute of Atomic and Molecular Physics, Jilin University, Changchun 130012, ChinaWe experimentally studied the supercontinuum induced by femtosecond filamentation in different liquid media. Using a Mach–Zehnder interferometer, we determined the relative filamentation thresholds (<i>P</i><sub>th</sub>) of these media. Research has shown that the value of the filamentation threshold is greater than that of <i>P</i><sub>cr</sub> (critical power for self-focusing), which can mainly be attributed to the strong dispersion effect. Changing the focal length of the focusing lens affects filamentation dynamics, thereby affecting the measured results regarding the filamentation threshold. With shorter focal lengths, the linear focusing (i.e., geometrical focusing) regime dominates, and the measured values of <i>P</i><sub>th</sub> for different liquid media are almost the same; as the focal length becomes larger, self-focusing starts to play a role, making the values of <i>P</i><sub>th</sub> for different media different from each other. This study presents an efficient method for investigating the femtosecond filamentation phenomenon in liquid media, helpful to provide further insights into the physical mechanism of supercontinuum generation via femtosecond filamentation in liquid media.https://www.mdpi.com/1424-8220/23/22/9163femtosecond filamentfilamentation thresholdsupercontinuuminterference |
| spellingShingle | Yun Zhang Yu Xia Canneng Liang Anmin Chen Suyu Li Mingxing Jin Exploring the Femtosecond Filamentation Threshold in Liquid Media Using a Mach–Zehnder Interferometer Sensors femtosecond filament filamentation threshold supercontinuum interference |
| title | Exploring the Femtosecond Filamentation Threshold in Liquid Media Using a Mach–Zehnder Interferometer |
| title_full | Exploring the Femtosecond Filamentation Threshold in Liquid Media Using a Mach–Zehnder Interferometer |
| title_fullStr | Exploring the Femtosecond Filamentation Threshold in Liquid Media Using a Mach–Zehnder Interferometer |
| title_full_unstemmed | Exploring the Femtosecond Filamentation Threshold in Liquid Media Using a Mach–Zehnder Interferometer |
| title_short | Exploring the Femtosecond Filamentation Threshold in Liquid Media Using a Mach–Zehnder Interferometer |
| title_sort | exploring the femtosecond filamentation threshold in liquid media using a mach zehnder interferometer |
| topic | femtosecond filament filamentation threshold supercontinuum interference |
| url | https://www.mdpi.com/1424-8220/23/22/9163 |
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