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

Hadden, J. P. ORCID: https://orcid.org/0000-0001-5407-6754, Harrison, J. P., Stanley-Clarke, A. C., Marseglia, L., Ho, Y.-L. D., Patton, B. R., O'Brien, J. L. and Rarity, J. G. 2010. Strongly enhanced photon collection from diamond defect centers under microfabricated integrated solid immersion lenses. Applied Physics Letters 97 (24) , 241901. 10.1063/1.3519847

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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.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Publisher:	AIP Publishing
ISSN:	0003-6951
Date of First Compliant Deposit:	18 July 2019
Date of Acceptance:	1 September 2010
Last Modified:	02 May 2023 21:53
URI:	https://orca.cardiff.ac.uk/id/eprint/114124

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