Femtosecond-laser generation of self-organized bubble patterns in fused silica

By continuously scanning a femtosecond laser beam across a fused silica specimen, we demonstrate the formation of self-organized bubbles buried in the material. Rather than using high intensity pulses and high numerical aperture to induce explosions in the material, here bubbles form as a consequenc...

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Bibliographic Details
Published in:Optics express 2011-03, Vol.19 (7), p.6807-6821
Main Authors: Bellouard, Yves, Hongler, Max-Olivier
Format: Article
Language:English
Subjects:
Computer Simulation
Materials Testing
Microbubbles
Models, Chemical
Silicon Dioxide - chemistry
Silicon Dioxide - radiation effects
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Summary:By continuously scanning a femtosecond laser beam across a fused silica specimen, we demonstrate the formation of self-organized bubbles buried in the material. Rather than using high intensity pulses and high numerical aperture to induce explosions in the material, here bubbles form as a consequence of cumulative energy deposits. We observe a transition between chaotic and self-organized patterns at high scanning rate (above 10 mm/s). Through modeling the energy exchange, we outline the similarities of this phenomenon with other non-linear dynamical systems. Furthermore, we demonstrate with this method the high-speed writing of two- and three- dimensional bubble "crystals" in bulk silica.
ISSN:1094-4087
1094-4087
DOI:10.1364/oe.19.006807