Synthesis of high-pressure phases of silica by laser-induced optical breakdown

We report on synthesis of compressed silica phase formed inside a α -quartz host crystal using powerful shock-wave and thermal transients generated via local optical breakdown induced by low-energy, tightly focused femtosecond laser pulses. Structural characterization of irradiated areas by the X-ra...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2011-09, Vol.104 (3), p.903-906
Main Authors: Mizeikis, Vygantas, Kohara, Shinji, Onishi, Yasuo, Hirao, Norihisa, Saito, Akira, Vailionis, Arturas, Juodkazis, Saulius
Format: Article
Language:English
Subjects:
Breakdown
Characterization and Evaluation of Materials
Condensed Matter Physics
Crystals
Diffraction
Femtosecond
Lasers
Machines
Manufacturing
Nanotechnology
Optical and Electronic Materials
Phases
Physics
Physics and Astronomy
Processes
Silicon dioxide
Surfaces and Interfaces
Synthesis
Thin Films
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Summary:We report on synthesis of compressed silica phase formed inside a α -quartz host crystal using powerful shock-wave and thermal transients generated via local optical breakdown induced by low-energy, tightly focused femtosecond laser pulses. Structural characterization of irradiated areas by the X-ray diffraction technique reveals signatures of a new high-pressure phase of silica, which is theoretically expected to form at a pressure of 120 GPa.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-011-6437-6