Production of gold tips for tip-enhanced near-field optical microscopy and spectroscopy: analysis of the etching parametersL. Billot, L. Berguiga, M. L. de la Chapelle, Y. Gilbert and R. BachelotEur. Phys. J. Appl. Phys., 31 2 (2005) 139-145DOI: https://doi.org/10.1051/epjap:2005049