Strongly enhanced photon collection from diamond defect centers under microfabricated integrated solid immersion lenses

J. P. Hadden, J. P. Harrison, A. C. Stanley-Clarke, L. Marseglia, Y. L D Ho, B. R. Patton, J. L. O'Brien, J. G. Rarity

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Abstract

The efficiency of photon collection from optically active defect centers in bulk diamond is greatly reduced by refraction at the diamond-air interface. We report on the fabrication and measurement of a geometrical solution to the problem; integrated solid immersion lenses (SILs) etched directly into the surface of diamond. An increase of a factor of 10 was observed in the saturated count-rate from a single negatively charged nitrogen-vacancy (NV-) within a 5 μm diameter SIL compared with NV- 's under a planar surface in the same crystal. Such a system is potentially scalable and easily adaptable to other defect centers in bulk diamond.

Original languageEnglish
Article number241901
JournalApplied Physics Letters
Volume97
Issue number24
DOIs
Publication statusPublished - 13 Dec 2010
Externally publishedYes

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Hadden, J. P., Harrison, J. P., Stanley-Clarke, A. C., Marseglia, L., Ho, Y. L. D., Patton, B. R., ... Rarity, J. G. (2010). Strongly enhanced photon collection from diamond defect centers under microfabricated integrated solid immersion lenses. Applied Physics Letters, 97(24), [241901]. https://doi.org/10.1063/1.3519847