Abbreviated Journal Title
Appl. Phys. Lett.
Keywords
FUSED-SILICA; MULTIWAVELENGTH EXCITATION; OPTICAL-BREAKDOWN; ABLATION; DIELECTRICS; PULSES; IRRADIATION; ENERGY; QUARTZ; FIELD; Physics, Applied
Abstract
We report on the experimental study of microstructures fabricated on the surface of fused silica by two femtosecond laser pulses, a tightly focused 266 nm beam followed by a loosely focused 800 nm beam. By setting the fluence of each pulse below the damage threshold, visible microstructures are fabricated using the combined beams. Our results suggest that the ultraviolet pulse generates seed electrons through multiphoton absorption, and the near-infrared pulse utilizes these electrons to cause damage by avalanche ionization.
Journal Title
Applied Physics Letters
Volume
102
Issue/Number
10
Publication Date
1-1-2013
Document Type
Article
DOI Link
Language
English
First Page
4
WOS Identifier
ISSN
0003-6951
Recommended Citation
Yu, X.; Bian, Q.; Zhao, B.; Chang, Z.; Corkum, P. B.; and Lei, S., "Near-infrared femtosecond laser machining initiated by ultraviolet multiphoton ionization" (2013). Faculty Bibliography 2010s. 4906.
https://stars.library.ucf.edu/facultybib2010/4906
Comments
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