Raman microprobe technique diagnostic of YBCO films produced by laser ablation

Autor:	S. Pestelli, Maria Allegrini, M. Zoppi, P Martini, Francesco Fuso, Ennio Arimondo, A Diodati, Marina Mazzoni, L. Ulivi
Rok vydání:	1994
Předmět:	Microprobe Laser ablation Materials science business.industry medicine.medical_treatment Homogeneity (statistics) Detector General Physics and Astronomy Ablation symbols.namesake Optics medicine symbols business Raman spectroscopy Image resolution Laser beams
Zdroj:	Il Nuovo Cimento D. 16:2011-2017
ISSN:	1826-9893 0392-6737
DOI:	10.1007/bf02471860
Popis:	We have used a Raman microprobe technique for the characterisation and the diagnostic of YBCO superconducting thin films deposited by Pulsed-Laser Ablation (PLA) on MgO insulating substrates. Using polarisation analysis associated with sample rotations we developed a method for films orientation determination without any request for absolute calibration of the Raman spectra. The use of a bidimensional multichannel detector (OMA 4) allowed an overall detection time of 40 minutes. Each spectrum (shift range from 100 cm−1 to 700 cm−1) takes about 600 seconds. The results of this detection were used to determine the oxygen content, from the position of the Raman mode at 500 cm−1 Homogeneity was checked with the spatial resolution allowed by the dimension of the focused laser beam (10 μm).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71430c3f6b44595672cc927c60a7eccf https://doi.org/10.1007/bf02471860 Zobrazit plný text záznamu Full text from SpringerLink