Projects per year
Abstract
The efficiency of collecting photons from optically active defect centres in bulk diamond is greatly reduced by refraction and reflection 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 5um diameter SIL compared with NV-s under a planar surface in the same crystal. A factor of 3 reduction in background emission was also observed due to the reduced excitation volume with a SIL present. Such a system is potentially scalable and easily adaptable to other defect centres in bulk diamond.
Original language | English |
---|---|
Pages (from-to) | 241901-1 - 241901-3 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 97 |
Issue number | 24 |
DOIs | |
Publication status | Published - 1 Jun 2010 |
Bibliographical note
Publisher: American Institute of PhysicsResearch Groups and Themes
- QETLabs
- Photonics and Quantum
Fingerprint
Dive into the research topics of 'Strongly enhanced photon collection from diamond defect centers under microfabricated integrated solid immersion lenses'. Together they form a unique fingerprint.Projects
- 1 Finished
-
QUANTUM MEASURMENTS WITH PHOTONS
O'Brien, J. L. (Principal Investigator)
1/10/07 → 1/10/10
Project: Research