Diamond Electron-Spin Clocks For Space Navigation and Communication

Metadata Updated: May 2, 2019

Precision clocks are needed in a broad range of applications, including satellite communication, high-bandwidth wireless communication, computing systems, and navigation, such as the global positioning system (GPS). The most accurate time and frequency standards developed to date are atomic clocks, which derive their stability from electronic transitions in atoms. But atomic clocks, which rely on atomic gases or trapped ions and atoms, are large and difficult to assemble and control. By contrast, a solid-state alternative leveraging modern semiconductor technology would be ideal for integration in a range of devices, may be orders of magnitude smaller, lighter, and be more durable in a range of potentially harsh environments. The material hardness, rigidity, and compactness of the proposed solid-state atomic clock analog makes it ideal for space applications.

In particular, in this program, we propose to develop a solid-state alternative to atomic clocks, implementing our recent theoretical proposal for frequency locking to magnetic sub-levels of the nitrogen vacancy (NV) color center in diamond. Due to the NVs exceptionally long spin coherence time, a high density of spins in the solid, and optical spin detection, we estimate a time stability that rivals or exceeds the performance of the newest chip-scale Cs and Rb standards, but in a package that is at least 2 orders of magnitude smaller and lighter. Developing an atom-like standard in a solid state host promises rapid integration into semi-conductor fabrication processes, thus achieving a technological breakthrough in portable standards.

The goal of the proposed program is to (i) develop a diamond-based, 2.87-GHz CMOS-integrated clock employing electronic transitions in ensembles of the diamond NV center, and to reach an Allan deviation better than 10^12/(integration_time)^1/2, matching or exceeding the performance of compact atomic clocks; and (ii) to establish a full quantum-theoretic understanding of spin-based frequency and time standards based on color centers in diamond, promising advanced spin clock protocols. Solid-state implementations of high- performance atomic gyroscopes and atomic magnetic gradiometers will be investigated.

This solid-state alternative to atomic clocks could benefit a range of NASA capabilities: smaller, lower-power clocks in satellites; uninterruptable/jam-tolerant GPS navigation; compact satellites; formation flying; deep-space space-craft; and micro-satellites. The program would also advance our theoretical understanding of possible high-performance gyroscopes for navigation and magnetic gradiometers for magnetic imaging at security checks or in the field.

Access & Use Information

Public: This dataset is intended for public access and use. License: U.S. Government Work

Downloads & Resources


Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_11485
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Datagov Dedupe Retained 20190501230127
Harvest Object Id 18e52794-4c68-4163-a67e-6a5233ee34e0
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2016-12-01
Homepage URL https://techport.nasa.gov/view/11485
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 46510d6d02cc1278c9d9280c7d86c4423319849e
Source Schema Version 1.1

Didn't find what you're looking for? Suggest a dataset here.