NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Chip-scale atomic devices combine elements of precision atomic spectroscopy, silicon micromachining and advanced diode laser technology to create compact, low-power and manufacturable instruments with high precision and stability. We review the design, fabrication and performance of chip-scale atomic clocks, magnetometers and other instruments and discuss the many applications in which these novel instruments are being used. Finally, we discuss prospects for future generations of miniaturized instruments such as chip-scale optical clocks, photonically integrated systems and manufacturable devices which may enable embedded absolute measurement of a broad range of physical quantities. Key words: atomic clock, microelectromechanical system, coherent population trapping, micromachining, chip-scale, microfabricated, magnetometer, optically pumped magnetometer, atomic magnetometer