Purcell-enhanced optical spin readout of nitrogen-vacancy centers in diamond

S. A. Wolf, I. Rosenberg, R. Rapaport, N. Bar-Gill*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

Nitrogen-vacancy (NV) color centers in diamond have emerged as promising quantum solid-state systems, with applications ranging from quantum information processing to magnetic sensing. One of the most useful properties of NVs is the ability to read their ground-state spin projection optically at room temperature. Using theoretical analysis of Purcell-enhanced NV optical coupling, we identify parameters for a significantly enhanced single-to-noise ratio (SNR) of the optical spin-state readout. We then demonstrate that a combined increase in spontaneous emission (through Purcell enhancement) and in optical excitation could significantly increase the readout SNR. Our combined analytical and numerical analysis, which is relevant for various optically active solid-state systems, differentiates between state-mixing processes and provides insights into the optimal light-matter coupling design.

Original languageAmerican English
Article number235410
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume92
Issue number23
DOIs
StatePublished - 7 Dec 2015

Bibliographical note

Publisher Copyright:
© 2015 American Physical Society.

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