| Full text | |
| Author(s): |
Courrol, L. C.
[1]
;
Samad, R. E.
[2]
;
Martinez, O. E.
[3]
;
Gomes, L.
[2]
;
Ranieri, I. M.
[2]
;
Baldochi, S. L.
[2]
;
de Freitas, A. Z.
[2]
;
Vieira Junior, N. D.
[2]
Total Authors: 8
|
| Affiliation: | [1] Univ Fed Sao Paulo, Dept Ciencias Exatas & Terra, Sao Paulo - Brazil
[2] IPEN CNEN SP, Ctr Lasers & Aplicacoes, Sao Paulo - Brazil
[3] Univ Buenos Aires, Dept Fis, FCEN, Lab Elect Cuant, RA-1053 Buenos Aires, DF - Argentina
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS; v. 10, n. 10 OCT 2008. |
| Web of Science Citations: | 4 |
| Abstract | |
In this paper, the spatial and spectral properties of colour centres produced in LiF single crystals by ultrashort high intensity laser pulses are reported. The emission spectra of the centres were measured conventionally and also by confocal microscopy. A large amount of F centres that gave rise to aggregates such as F(2), F(4), F(2)(+) and F(3)(+) could be identified, showing a microscopic homogeneous distribution. The coloured surfaces were also spatially characterized by atomic force microscopy, and the images show the presence of defects on the modified surface. The formation of micrometric and sub-micrometric structures was observed and related to filamentation processes. (AU) | |
| FAPESP's process: | 00/15135-9 - Implementation of a terawatt laser system and its applications |
| Grantee: | Nilson Dias Vieira Junior |
| Support Opportunities: | Research Projects - Thematic Grants |