Synthesis of Nanoscale Tips Using Femtosecond Laser Radiation under Ambient Condition
<p>Abstract</p> <p>We report a unique growth of platelet-shaped nanoscale tips of transparent dielectric using femtosecond laser radiation at MHz pulse repetition rate with nitrogen background gas flow under ambient condition. The tips grew with sharp nanoscale apex while their bas...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2009-01-01
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| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1007/s11671-009-9502-8 |
| _version_ | 1797724798039621632 |
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| author | Venkatakrishnan K Sivakumar M Tan B |
| author_facet | Venkatakrishnan K Sivakumar M Tan B |
| author_sort | Venkatakrishnan K |
| collection | DOAJ |
| description | <p>Abstract</p> <p>We report a unique growth of platelet-shaped nanoscale tips of transparent dielectric using femtosecond laser radiation at MHz pulse repetition rate with nitrogen background gas flow under ambient condition. The tips grew with sharp nanoscale apex while their base and lengths are of the order of few hundred nanometers. In the absence of nitrogen, the irradiation leads to nanofibrous structure formation. The collision between the nitrogen gas atoms and the vapor species slows down plume expansion and lead to an increase of nanoparticles size. This prevents the fibrous structure formation and provides appropriate condition for nanoscale tips growth.</p> |
| first_indexed | 2024-03-12T10:22:00Z |
| format | Article |
| id | doaj.art-b479d9ebcb3e4907a3e3bfddb664972c |
| institution | Directory Open Access Journal |
| issn | 1931-7573 1556-276X |
| language | English |
| last_indexed | 2024-03-12T10:22:00Z |
| publishDate | 2009-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-b479d9ebcb3e4907a3e3bfddb664972c2023-09-02T10:02:23ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2009-01-0152438441Synthesis of Nanoscale Tips Using Femtosecond Laser Radiation under Ambient ConditionVenkatakrishnan KSivakumar MTan B<p>Abstract</p> <p>We report a unique growth of platelet-shaped nanoscale tips of transparent dielectric using femtosecond laser radiation at MHz pulse repetition rate with nitrogen background gas flow under ambient condition. The tips grew with sharp nanoscale apex while their base and lengths are of the order of few hundred nanometers. In the absence of nitrogen, the irradiation leads to nanofibrous structure formation. The collision between the nitrogen gas atoms and the vapor species slows down plume expansion and lead to an increase of nanoparticles size. This prevents the fibrous structure formation and provides appropriate condition for nanoscale tips growth.</p>http://dx.doi.org/10.1007/s11671-009-9502-8Femtosecond laser ablationNanoscale tipsNanostructuring |
| spellingShingle | Venkatakrishnan K Sivakumar M Tan B Synthesis of Nanoscale Tips Using Femtosecond Laser Radiation under Ambient Condition Nanoscale Research Letters Femtosecond laser ablation Nanoscale tips Nanostructuring |
| title | Synthesis of Nanoscale Tips Using Femtosecond Laser Radiation under Ambient Condition |
| title_full | Synthesis of Nanoscale Tips Using Femtosecond Laser Radiation under Ambient Condition |
| title_fullStr | Synthesis of Nanoscale Tips Using Femtosecond Laser Radiation under Ambient Condition |
| title_full_unstemmed | Synthesis of Nanoscale Tips Using Femtosecond Laser Radiation under Ambient Condition |
| title_short | Synthesis of Nanoscale Tips Using Femtosecond Laser Radiation under Ambient Condition |
| title_sort | synthesis of nanoscale tips using femtosecond laser radiation under ambient condition |
| topic | Femtosecond laser ablation Nanoscale tips Nanostructuring |
| url | http://dx.doi.org/10.1007/s11671-009-9502-8 |
| work_keys_str_mv | AT venkatakrishnank synthesisofnanoscaletipsusingfemtosecondlaserradiationunderambientcondition AT sivakumarm synthesisofnanoscaletipsusingfemtosecondlaserradiationunderambientcondition AT tanb synthesisofnanoscaletipsusingfemtosecondlaserradiationunderambientcondition |