Three-dimensional photoprecipitation of oriented LiNbO sub(3)-like crystals in silica-based glass with femtosecond laser irradiation

We demonstrate crystals (LiNbO3-like) that were space-selectively nucleated and grown in the bulk of silica-based glass by femtosecond laser irradiation at a high repetition rate (typ. 300 kHz). Oriented crystals with their polar axis mostly aligned with or perpendicular to the laser scanning direct...

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Bibliographic Details
Published in:Optics letters 2012-07, Vol.37 (14), p.2955-2957
Main Authors: Fan, C, Poumellec, B, Lancry, M, He, X, Zeng, H, Erraji-Chahid, A, Liu, Q, Chen, G
Format: Article
Language:English
Subjects:
Crystal structure
Crystals
Femtosecond
Glass
Irradiation
Lasers
Scanning
Three dimensional
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Summary:We demonstrate crystals (LiNbO3-like) that were space-selectively nucleated and grown in the bulk of silica-based glass by femtosecond laser irradiation at a high repetition rate (typ. 300 kHz). Oriented crystals with their polar axis mostly aligned with or perpendicular to the laser scanning direction have been fabricated by manipulation of the temperature gradient in adjusting the laser parameters. The mechanism for the orientation of femtosecond laser-induced crystallization is briefly discussed.
ISSN:0146-9592