Anisotropic properties of ultrafast laser-driven microexplosions in lithium niobate crystal

Search Swinburne Research Bank

Home

Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/1471

Download PDF (Publisher-version) (Adobe Acrobat PDF, -1 bytes)

Title: Anisotropic properties of ultrafast laser-driven microexplosions in lithium niobate crystal
Author(s): Zhou, Guangyong; Gu, Min
Abstract: Smooth voids are achieved in an anisotropic Fe:LiNbO3 crystal with a high refractive index by use of a femtosecond laser-driven microexplosion method. Due to the anisotropy of the crystal, the maximum fabrication depth and the fabrication power threshold are different in different crystal directions, indicating that the direction perpendicular to the crystal axis is more suitable for thick three-dimensional structure fabrication. The dependence of the threshold power on the illumination wavelength shows that the microexplosion mechanism is caused by a two-photon absorption process. As a result, a near threshold fabrication method can be used to generate quasispherical voids.
Publication type: Journal article
Research centre: Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Micro-Photonics
Source: Applied physics letters, Vol. 87, no. 24 (2005)
Publication year: 2005
Keyword(s): Anisotropic media; Laser beam effect; Lithium compounds; Iron; Optical materials; Voids (solid); Refractive index; High-speed optical techniques; Two-photon processes; Nonlinear optics
Publisher: American Institute of Physics
ISSN: 0003-6951
Publisher URL: http://dx.doi.org/10.1063/1.2142083
Full text
Peer reviewed