| Original Articles |
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Self-Assembled Quasi-Periodic Voids in Glass Induced by a Tightly Focused Femtosecond Laser |
| DAi Ye1,2;HU Xiao1;SONG Juan1;YU Bing-Kun2;QIU Jian-Rong3 |
| 1State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 2018002Department of Physics, Shanghai University, Shanghai 2004443Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027 |
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| Cite this article: |
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DAi Ye, HU Xiao, SONG Juan et al 2007 Chin. Phys. Lett. 24 1941-1944 |
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Abstract Multiple refocusing of a tightly focused femtosecond laser due to the dynamic transformation between self-focusing and self-defocusing is employed to provide a novel method to produce quasi-periodic voids in glass. It is found that the diameter or the interval of the periodic voids increases with the increasing pulse energy of the laser. The detailed course for producing periodic voids is discussed by analysing the damaged track induced by the tightly focused femtosecond laser pulses. It is suggested that this periodic structure has potential applications in fabrication of three-dimensional optical devices.
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| Keywords:
42.65.Jx
42.65.Sf
42.70.Ce
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Received: 21 March 2007
Published: 25 June 2007
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| PACS: |
42.65.Jx
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(Beam trapping, self-focusing and defocusing; self-phase modulation)
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42.65.Sf
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(Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)
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42.70.Ce
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(Glasses, quartz)
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