Remote plasma cleaning of optical surfaces: Cleaning rates of different carbon allotropes as a function of RF powers and distances

An extended study on an advanced method for the cleaning of carbon contaminations from large optical surfaces using a remote inductively coupled low-pressure RF plasma source (GV10x DownStream Asher) is reported. Technical and scientific features of this scaled up cleaning process are analysed, such...

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Detalhes bibliográficos
Autores: Cuxart, M. G., Reyes-Herrera, Juan, Šics, Igors, Goñi, Alejandro R., Moreno Fernandez, H., Carlino, Vince, Pellegrin, Eric
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/147836
Acesso em linha:http://hdl.handle.net/10261/147836
Access Level:acceso abierto
Palavra-chave:Remote inductively coupled plasma
Plasma cleaning
Graphitic carbon
Diamond-like carbon
Optical emission spectroscopy
X-ray photoemission spectroscopy
Raman spectroscopy
Descrição
Resumo:An extended study on an advanced method for the cleaning of carbon contaminations from large optical surfaces using a remote inductively coupled low-pressure RF plasma source (GV10x DownStream Asher) is reported. Technical and scientific features of this scaled up cleaning process are analysed, such as the cleaning efficiency for different carbon allotropes (amorphous and diamond-like carbon) as a function of feedstock gas, RF power (from 30 to 300W), and source-object distances (415 to 840 mm). The underlying physical phenomena for these functional dependences are discussed.