Nitrogen fluorescence induced by the femtosecond intense laser pulses in air
Our experiments show that external focusing and initial laser energy strongly influences filament generated by the femtosecond Ti–sapphire laser in air. The experimental measurements show the filament length can be extended both by increasing the laser energy and focal length of focusing lens. On th...
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| Veröffentlicht in: | High power laser science and engineering 2016, Vol.4 (1), p.45-51, Article e7 |
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| container_title | High power laser science and engineering |
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| creator | Li, He Li, Suyu Li, Shuchang Liu, Dunli Tian, Dan Chen, Anmin Wang, Ying Wang, Xiaowei Zhang, Yunfeng Jin, Mingxing |
| description | Our experiments show that external focusing and initial laser energy strongly influences filament generated by the femtosecond Ti–sapphire laser in air. The experimental measurements show the filament length can be extended both by increasing the laser energy and focal length of focusing lens. On the other hand, the plasma fluorescence emission can be enhanced by increasing the laser energy with fixed focal length or decreasing the focal length. In addition, the collapse distance measured experimentally are larger than the calculated ones owing to the group-velocity-dispersion effect. In addition, we find that the line widths of the spectral lines from $\text{N}_{2}$ is independent of filament positions, laser energies and external focusing. |
| doi_str_mv | 10.1017/hpl.2016.8 |
| format | Article |
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The experimental measurements show the filament length can be extended both by increasing the laser energy and focal length of focusing lens. On the other hand, the plasma fluorescence emission can be enhanced by increasing the laser energy with fixed focal length or decreasing the focal length. In addition, the collapse distance measured experimentally are larger than the calculated ones owing to the group-velocity-dispersion effect. In addition, we find that the line widths of the spectral lines from $\text{N}_{2}$ is independent of filament positions, laser energies and external focusing.</description><identifier>ISSN: 2095-4719</identifier><identifier>EISSN: 2052-3289</identifier><identifier>DOI: 10.1017/hpl.2016.8</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>femtosecond ; Femtosecond pulses ; Fluorescence ; Laboratories ; laser;filament;fluorescence ; Lasers ; Line spectra ; Molecular physics ; Physics ; Plasma ; Propagation ; Remote sensing ; Sapphire ; Spectrum analysis</subject><ispartof>High power laser science and engineering, 2016, Vol.4 (1), p.45-51, Article e7</ispartof><rights>The Author(s) 2016</rights><rights>The Author(s) 2016 This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c376t-ccf78310cf598994f291e1c742b0af5a78322b91c0e0e0357b5a3d993940bd903</citedby><cites>FETCH-LOGICAL-c376t-ccf78310cf598994f291e1c742b0af5a78322b91c0e0e0357b5a3d993940bd903</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/72079X/72079X.jpg</thumbnail><linktohtml>$$Uhttps://www.cambridge.org/core/product/identifier/S2095471916000086/type/journal_article$$EHTML$$P50$$Gcambridge$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,864,4024,23318,27923,27924,27925,55804</link.rule.ids></links><search><creatorcontrib>Li, He</creatorcontrib><creatorcontrib>Li, Suyu</creatorcontrib><creatorcontrib>Li, Shuchang</creatorcontrib><creatorcontrib>Liu, Dunli</creatorcontrib><creatorcontrib>Tian, Dan</creatorcontrib><creatorcontrib>Chen, Anmin</creatorcontrib><creatorcontrib>Wang, Ying</creatorcontrib><creatorcontrib>Wang, Xiaowei</creatorcontrib><creatorcontrib>Zhang, Yunfeng</creatorcontrib><creatorcontrib>Jin, Mingxing</creatorcontrib><title>Nitrogen fluorescence induced by the femtosecond intense laser pulses in air</title><title>High power laser science and engineering</title><addtitle>High Pow Laser Sci Eng</addtitle><description>Our experiments show that external focusing and initial laser energy strongly influences filament generated by the femtosecond Ti–sapphire laser in air. 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In addition, we find that the line widths of the spectral lines from $\text{N}_{2}$ is independent of filament positions, laser energies and external focusing.</description><subject>femtosecond</subject><subject>Femtosecond pulses</subject><subject>Fluorescence</subject><subject>Laboratories</subject><subject>laser;filament;fluorescence</subject><subject>Lasers</subject><subject>Line spectra</subject><subject>Molecular physics</subject><subject>Physics</subject><subject>Plasma</subject><subject>Propagation</subject><subject>Remote sensing</subject><subject>Sapphire</subject><subject>Spectrum analysis</subject><issn>2095-4719</issn><issn>2052-3289</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>IKXGN</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNplkE1LAzEQhhdRsGgv_oKAN3FrPpvkKMUvKHrRc9jNTrYr26RNdg_992ZpEUHC5GuemXd4i-KG4AXBRD5sdv2CYrJcqLNiRrGgJaNKn093LUouib4s5il1NaacCaEpmxXr926IoQWPXD-GCMmCt4A634wWGlQf0LAB5GA7hAQ2-CanBvAJUF8liGg39glS_kRVF6-LC1fl9_x0XhVfz0-fq9dy_fHytnpcl5bJ5VBa66RiBFsntNKaO6oJECs5rXHlRJWTlNaaWAx5MSFrUbFGa6Y5rhuN2VVxe-y7i2E_QhrMdxijz5KG5Ia5QkuRqbsjZWNIKYIzu9htq3gwBJvJMJMNM5NhRmWYneBN8O2-8-0vLanCcqmYwFxxLfi051Bikrg_VVXbOnZNC38m-S_yA3kQe1Y</recordid><startdate>2016</startdate><enddate>2016</enddate><creator>Li, He</creator><creator>Li, Suyu</creator><creator>Li, Shuchang</creator><creator>Liu, Dunli</creator><creator>Tian, Dan</creator><creator>Chen, Anmin</creator><creator>Wang, Ying</creator><creator>Wang, Xiaowei</creator><creator>Zhang, Yunfeng</creator><creator>Jin, Mingxing</creator><general>Cambridge University Press</general><scope>IKXGN</scope><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope></search><sort><creationdate>2016</creationdate><title>Nitrogen fluorescence induced by the femtosecond intense laser pulses in air</title><author>Li, He ; 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The experimental measurements show the filament length can be extended both by increasing the laser energy and focal length of focusing lens. On the other hand, the plasma fluorescence emission can be enhanced by increasing the laser energy with fixed focal length or decreasing the focal length. In addition, the collapse distance measured experimentally are larger than the calculated ones owing to the group-velocity-dispersion effect. In addition, we find that the line widths of the spectral lines from $\text{N}_{2}$ is independent of filament positions, laser energies and external focusing.</abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><doi>10.1017/hpl.2016.8</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | femtosecond Femtosecond pulses Fluorescence Laboratories laser filament fluorescence Lasers Line spectra Molecular physics Physics Plasma Propagation Remote sensing Sapphire Spectrum analysis |
| title | Nitrogen fluorescence induced by the femtosecond intense laser pulses in air |
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