Microstructure on surface of LiNbO3:Fe induced by a single ultra-short laser pulse

Guang Gua Cheng, J. D. White, Qing Liu, Yi Shan Wang, Wei Zhao, Guo Fu Chen

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

A tightly focused femtosecond Ti:sapphire laser pulse is used to initiate micro-explosions on the surface and internal to an Fe:LiNbO3 crystal. The resulting structure is morphologically different from that induced in an isotropic sample such as fused silica. The regular pyramid and irregular pyramid craters on the surface of the sample are produced at different positions of focal points. The craters suggest vaporization of materials in the process of micro-explosion due to the expansion of high temperature plasma. The embossment pyramids on the surface present the dynamical process of large volume material displacements under high temperature and pressure, and recrystallization of anisotropy crystal materials.

Original languageEnglish
Pages (from-to)1283-1285
Number of pages3
JournalChinese Physics Letters
Volume20
Issue number8
DOIs
StatePublished - Aug 2003
Externally publishedYes

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