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Chaigneau, M., Louarn, G. & Minea, T. M. (2008) Nanoaperture formation at metal covered tips by microspark optimized for near-field optical probes. Appl. Phys. Lett. 92 093106. 
Added by: Laurent Cournède (2016-03-10 21:58:42)
Type de référence: Article
DOI: 10.1063/1.2888949
Numéro d'identification (ISBN etc.): 0003-6951
Clé BibTeX: Chaigneau2008
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Catégories: PMN
Mots-clés: microscopy
Créateurs: Chaigneau, Louarn, Minea
Collection: Appl. Phys. Lett.
Consultations : 8/415
Indice de consultation : 2%
Indice de popularité : 0.5%
Résumé     
A simple and reproducible method for nanoaperture opening of metal film covered tapered optical fibers is reported as the last step of the manufacturing process for near-field scanning optical microscopy (NSOM) probes. It uses a microspark between the biased tip and another plane electrode working as a coronalike discharge in point-to-plane configuration. The resultant high electric field is enhanced at the extremity of the metallized tip self-focusing the discharge ions. The opening process is performed in situ in a specially designed plasma reactor which also allows, for the optical fiber tips, their surface cleaning and silver coating. Nanoaperture diameter can be controlled between 30 and 100 nm. These probes are able to generate subwavelength resolved images and are appropriate for high resolution NSOM. (c) 2008 American Institute of Physics.
Added by: Laurent Cournède  
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