Long-term data storage in diamond

Siddharth Dhomkar, Jacob Henshaw, Harishankar Jayakumar, Carlos A. Meriles

Research output: Contribution to journalArticlepeer-review

Abstract

The negatively charged nitrogen vacancy (NV-) center in diamond is the focus of widespread attention for applications ranging from quantum information processing to nanoscale metrology. Althoughmostwork so far has focused on the NV- optical and spin properties, control of the charge state promises complementary opportunities. One intriguing possibility is the long-term storage of information, a notion we hereby introduce using NV-rich, type 1b diamond. As a proof of principle, we use multicolor optical microscopy to read, write, and reset arbitrary data sets with two-dimensional (2D) binary bit density comparable to present digital-video-disk (DVD) technology. Leveraging on the singular dynamics of NV- ionization, we encode information on different planes of the diamond crystal with no crosstalk, hence extending the storage capacity to three dimensions. Furthermore, we correlate the center's charge state and the nuclear spin polarization of the nitrogen host and showthat the latter is robust to a cycle of NV- ionization and recharge. In combination with super-resolution microscopy techniques, these observations provide a route toward subdiffraction NV charge control, a regime where the storage capacity could exceed present technologies. 2016

Original languageEnglish (US)
Article number1600911
JournalScience Advances
Volume2
Issue number10
DOIs
StatePublished - Oct 2016
Externally publishedYes

Bibliographical note

Funding Information:
Support for this work was provided by NSF through grant NSF-1314205.

Publisher Copyright:
© The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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