An Experimental Study of Multiphoton Ionization in Fused Silica at IR and Visible Wavelengths
We present the results of an experimental study of multiphoton ionization in fused silica, using a linearly polarized femtosecond Satsuma fiber laser with an active medium based on Yb<sup>+3</sup> ions, at 515 -nm and 1030 -nm wavelengths. The radiation transmission in the fused silica w...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/10/5/515 |
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| author | Anna Bogatskaya Yulia Gulina Nikita Smirnov Ilia Gritsenko Sergey Kudryashov Alexander Popov |
| author_facet | Anna Bogatskaya Yulia Gulina Nikita Smirnov Ilia Gritsenko Sergey Kudryashov Alexander Popov |
| author_sort | Anna Bogatskaya |
| collection | DOAJ |
| description | We present the results of an experimental study of multiphoton ionization in fused silica, using a linearly polarized femtosecond Satsuma fiber laser with an active medium based on Yb<sup>+3</sup> ions, at 515 -nm and 1030 -nm wavelengths. The radiation transmission in the fused silica was measured as a function of the laser intensity and wavelength and the data were analyzed using a theoretical model based on the Keldysh theory. We determined the multiphoton absorption cross-sections in the fused silica in the case of four- and eight-photon ionization and analyzed the contribution of avalanche ionization. The obtained results provide insight into the fundamental processes involved in multiphoton ionization and have implications for its applications, such as laser micromachining and material processing. |
| first_indexed | 2024-03-11T03:23:26Z |
| format | Article |
| id | doaj.art-79214e84cdc041d8a68652242e48ea85 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-11T03:23:26Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-79214e84cdc041d8a68652242e48ea852023-11-18T02:53:52ZengMDPI AGPhotonics2304-67322023-04-0110551510.3390/photonics10050515An Experimental Study of Multiphoton Ionization in Fused Silica at IR and Visible WavelengthsAnna Bogatskaya0Yulia Gulina1Nikita Smirnov2Ilia Gritsenko3Sergey Kudryashov4Alexander Popov5Physics Department, Moscow State University, 119991 Moscow, RussiaLebedev Physical Institute, 119991 Moscow, RussiaLebedev Physical Institute, 119991 Moscow, RussiaLebedev Physical Institute, 119991 Moscow, RussiaLebedev Physical Institute, 119991 Moscow, RussiaPhysics Department, Moscow State University, 119991 Moscow, RussiaWe present the results of an experimental study of multiphoton ionization in fused silica, using a linearly polarized femtosecond Satsuma fiber laser with an active medium based on Yb<sup>+3</sup> ions, at 515 -nm and 1030 -nm wavelengths. The radiation transmission in the fused silica was measured as a function of the laser intensity and wavelength and the data were analyzed using a theoretical model based on the Keldysh theory. We determined the multiphoton absorption cross-sections in the fused silica in the case of four- and eight-photon ionization and analyzed the contribution of avalanche ionization. The obtained results provide insight into the fundamental processes involved in multiphoton ionization and have implications for its applications, such as laser micromachining and material processing.https://www.mdpi.com/2304-6732/10/5/515multiphoton ionizationmultiphoton absorption cross-sectionsKeldysh theoryprobability of ionizationlaser micromachining in dielectricsself-organization of matter |
| spellingShingle | Anna Bogatskaya Yulia Gulina Nikita Smirnov Ilia Gritsenko Sergey Kudryashov Alexander Popov An Experimental Study of Multiphoton Ionization in Fused Silica at IR and Visible Wavelengths Photonics multiphoton ionization multiphoton absorption cross-sections Keldysh theory probability of ionization laser micromachining in dielectrics self-organization of matter |
| title | An Experimental Study of Multiphoton Ionization in Fused Silica at IR and Visible Wavelengths |
| title_full | An Experimental Study of Multiphoton Ionization in Fused Silica at IR and Visible Wavelengths |
| title_fullStr | An Experimental Study of Multiphoton Ionization in Fused Silica at IR and Visible Wavelengths |
| title_full_unstemmed | An Experimental Study of Multiphoton Ionization in Fused Silica at IR and Visible Wavelengths |
| title_short | An Experimental Study of Multiphoton Ionization in Fused Silica at IR and Visible Wavelengths |
| title_sort | experimental study of multiphoton ionization in fused silica at ir and visible wavelengths |
| topic | multiphoton ionization multiphoton absorption cross-sections Keldysh theory probability of ionization laser micromachining in dielectrics self-organization of matter |
| url | https://www.mdpi.com/2304-6732/10/5/515 |
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