Wavelength comparison for laser induced breakdown spectroscopy caries detection
Carregando...
Data
Data de publicação
2018
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
É parte de
LASERS IN DENTISTRY, 24th
Exportar
Resumo
Laser Induced Breakdown Spectroscopy (LIBS) is a technique capable to perform elemental analyses of a variety of
samples, independent of matter state. Other spectroscopy techniques may require a destructive and time-consuming
sample preparation. On the other hand, LIBS is a less destructive technique with no (or considerably less) sample
preparation, using a relatively simple experimental setup. LIBS also provides a multielement analysis into one single
spectrum acquisition, applying a Nd:YAG short-pulsed laser to ensure the stoichiometry between the sample and the
generated plasma. LIBS have been applied on the study of carious lesions using a Nd:YAG into its fundamental emission
at 1064 nm. It was shown that ratio of P/Ca and Zn/Ca can be used to monitor the cariogenic process. Another minor
elements, e.g. C and Cu, associated with bacteria biofilm were also measured with the Nd:YAG laser. The fundamental
wavelength emission (1064 nm) of Nd:YAG is coincident with a hydroxyapatite transmission window and it may affect
the result. In order to address this issue a study used the second harmonic of the Nd:YAG laser at 532 nm. It was show
that it is also possible perform LIBS on carious lesion using the Nd:YAG at 532 nm. However, there is not a work direct
comparing the LIBS at 532 nm and 1064 nm for carious lesion detection. So, the aim of this work was to investigate the
influence of laser wavelength on the LIBS performance for carious lesion detection. In both cases the carious lesion was
detected with the advantage of no interference with hydroxyapatite at 532 nm.
Como referenciar
AMARAL, MARCELLO M.; RAELE, MARCUS P.; ANA, PATRICIA A.; NUNEZ, SILVIA C.; ZAMATARO, CLAUDIA B.; ZEZELL, DENISE M. Wavelength comparison for laser induced breakdown spectroscopy caries detection. In: RECHMANN, PETER (ed.); FRIED, DANIEL (ed.). In: LASERS IN DENTISTRY, 24th, January 27 - February 01, 2018, San Francisco, California, USA. Proceedings... Bellingham, WA, USA: Society of Photo-optical Instrumentation Engineers, 2018. p. 104730K-1 - 104730K-6. (SPIE Proceedings Series, 10473). DOI: 10.1117/12.2288373. Disponível em: http://repositorio.ipen.br/handle/123456789/28920. Acesso em: 26 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.