Efficient photon collection from a nitrogen vacancy center in a circular bullseye grating

Luozhou Li; Edward H Chen; Jiabao Zheng; Sara L Mouradian; Florian Dolde; Tim Schröder; Sinan Karaveli; Matthew L Markham; Daniel J Twitchen; Dirk Englund

doi:10.1021/nl503451j

Efficient photon collection from a nitrogen vacancy center in a circular bullseye grating

Nano Lett. 2015 Mar 11;15(3):1493-7. doi: 10.1021/nl503451j. Epub 2015 Mar 2.

Authors

Luozhou Li¹, Edward H Chen, Jiabao Zheng, Sara L Mouradian, Florian Dolde, Tim Schröder, Sinan Karaveli, Matthew L Markham, Daniel J Twitchen, Dirk Englund

Affiliation

¹ Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States.

PMID: 25714414
DOI: 10.1021/nl503451j

Abstract

Efficient collection of the broadband fluorescence from the diamond nitrogen vacancy (NV) center is essential for a range of applications in sensing, on-demand single photon generation, and quantum information processing. Here, we introduce a circular "bullseye" diamond grating which enables a collected photon rate of (2.7 ± 0.09) × 10(6) counts per second from a single NV with a spin coherence time of 1.7 ± 0.1 ms. Back-focal-plane studies indicate efficient redistribution of the NV photoluminescence into low-NA modes by the bullseye grating.

Keywords: circular grating; nanostructured diamonds; nitrogen-vacancy center; quantum sensing.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.