Title :
Efficient collection from a nitrogen-vacancy qubit in a circular grating
Author :
Luozhou Li ; Chen, Edward H. ; Jiabao Zheng ; Mouradian, Sara ; Dolde, Florian ; Schroder, Tim ; Karaveli, Sinan ; Markham, Matthew L. ; Twitchen, Daniel J. ; Englund, Dirk
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
We demonstrate a circular `bullseye´ diamond grating enabling efficient collection of single photons from a single nitrogen-vacancy center with a spin coherence time of 1.7 ms. Back-focal-plane studies indicate efficient redistribution into low-NA modes.
Keywords :
diffraction gratings; quantum computing; quantum optics; vacancies (crystal); back-focal-plane; circular bullseye diamond grating; low-NA modes; nitrogen-vacancy center; nitrogen-vacancy qubit; spin coherence time; Diamonds; Gratings; Optical device fabrication; Optical refraction; Optical sensors; Optical variables control; Quantum entanglement;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
