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Grafting fluorescent nanodiamonds onto optical tips

A. Cuche, A. Drezet, J.-F. Roch, F. Treussart, S. Huant, J. Nanophotonics 4, 043506 (2010)

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We have recently introduced an all-optical method for grafting onto the apex of an optical tip a single 20 nm nanodiamond with single color-center occupancy and used the resulting single-photon tip in scanning near-field imaging at room temperature, thereby achieving a genuine scanning single-photon microscopy working in ambient conditions. Here, we describe a variant of the above method that allows for attaching several nanodiamonds onto the tip apex, releasing them all at once and finally recapturing them one by one by the scanning tip. This underlines the flexibility and powerfulness of our method and its variant that could be used in applications where a fixed number of selected optically active nano-objects requires positioning, or repositioning, at well defined locations with nanometer accuracy.

Actes de la conférence "Int. School and Workshop on Nanoscience and Nanotechnology, N&N09", 19-22 octobre 2009, Frascati (Italie)

arXiv:1002.1086v2
DOI: 10.1117/1.3374237

Acknowledgments
We are grateful to J.-F. Motte for the optical tip manufacturing, to J.-P. Boudou and T. Sauvage for the fluorescent nanodiamond preparation, and to Y. Sonnefraud and O. Faklaris for their contribution to early stages of this work. The PhD grant of AC by the Région Rhône-Alpes through Cluster MicroNano is gratefully acknowledged. This work was supported by the European Commission through the EQUIND and NEDQIT projects and by Agence Nationale de la Recherche, France, through the NADIA, PROSPIQ, and NAPHO projects.

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