Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/3808
Título: Transformations induced in bulk amorphous silica by ultrafast laser direct writingTransformations induced in bulk amorphous silica by ultrafast laser direct writing
Autor: Oliveira, Vitor
Sharma, Sahendra P.
Herrero, Pilar
Vilar, Rui
Palavras-chave: Femtosecond Laser
Transparent Materials
Fused-Silica
Glass
Data: 1-Dez-2013
Editora: Optical Soc Amer
Citação: OLIVERIRA, Vitor; SHARMA, Sahendra P.; HERRERO, Pilar; VILAR, Rui - Transformations induced in bulk amorphous silica by ultrafast laser direct writingTransformations induced in bulk amorphous silica by ultrafast laser direct writing. Optics Letters. Vol. 38, nr. 23 (2013), p. 4950-4953.
Resumo: A transmission electron microscopy study of nanogratings formed in bulk amorphous silica by direct writing with an ultrafast pulsed laser with a radiation wavelength of 1030 nm and pulse duration of 560 fs is presented. The results achieved show that the nanogratings are composed of planar nanostructures with an average periodicity of 250 nm and typical thickness of about 30 nm, consisting of alternating layers of heavily damaged material and layers of material where a dense precipitation of nanocrystals occurred. The crystallization of silica to form these nanocrystals can be explained by the large pressures and temperatures reached in these regions as a result of nanoplasma formation and recombination. (C) 2013 Optical Society of America
Descrição: Agências Financiadoras: Fundação para a Ciência e a Tecnologia - PTDC/FIS/102127/2008 e PTDC/FIS/102127/2008 e SFRH/BPD/78871/2011; Spanish Ministerio de Ciencia e Innovacion - FUNCOAT-CSD2008-00023-CONSOLIDER; Instituto Superior Técnico;
Peer review: yes
URI: http://hdl.handle.net/10400.21/3808
DOI: 10.1364/OL.38.004950
ISSN: 0146-9592
1539-4794
Versão do Editor: http://www.ncbi.nlm.nih.gov/pubmed/24281480
Aparece nas colecções:ISEL - Física - Artigos

Ficheiros deste registo:
Não existem ficheiros associados a este registo.


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.