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arXiv · 1406.7209

Microscopic diamond Solid-Immersion-Lenses fabricated around single defect ceneters by focussed ion beam milling

Mohammad Jamali·Ilja Gerhardt·Mohammad Rezai·Karsten Frenner·Helmut Fedder·Jörg Wrachtrup
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Abstract

Recent efforts to define microscopic solid-immersion-lenses (SIL) by focused ion beam milling into diamond substrates that are registered to a preselected single photon emitter are summarized. We show how we determine the position of a single emitter with at least 100 nm lateral and 500 nm axial accuracy, and how the milling procedure is optimized. The characteristics of a single emitter, a Nitrogen Vacancy (NV) center in diamond, are measured before and after producing the SIL and compared with each other. A count rate of 1.0 million counts per second is achieved with a $[111]$ oriented NV center.

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Mohammad Jamali, Ilja Gerhardt, Mohammad Rezai, Karsten Frenner, Helmut Fedder, Jörg Wrachtrup. 2014-06-27. Microscopic diamond Solid-Immersion-Lenses fabricated around single defect ceneters by focussed ion beam milling. https://doi.org/10.1063/1.4902818

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