Chip-scale molecular clock

2021-10-10 Hits:

Affiliation of Author(s):Massachusetts Institute of Technology (MIT)

Journal:IEEE Journal of Solid-State Circuits (JSSC)

Place of Publication:USA

Key Words:Allan deviation, CMOS, frequency stability, GPS, molecular clock, navigation, carbonyl sulfide (OCS)

Abstract:An ultra-stable time-keeping device is presented, which locks its output clock frequency to the rotational-mode transition of polar gaseous molecules. Based on a high-precision spectrometer in the sub-terahertz (THz) range, our new clocking scheme realizes not only fully electronic operation but also implementations using mainstream CMOS technology. Meanwhile, the small wavelength of probing wave and high absorption intensity of our adopted molecules (carbonyl sulfide, 16O12C32S) also enable miniaturization of the gas cell. All these result in an “atomic-clock-grade” frequency reference with

Note:https://ieeexplore.ieee.org/document/8581584

All the Authors:Xiang Yi,J. Mawdsley,Mina Kim,Zhi Hu,Yaqing Zhang,B. Perkins,Ruonan Han

First Author:Cheng Wang

Indexed by:期刊

Document Code:10.1109/JSSC.2018.2880920

Volume:54

Issue:4

Page Number:914-926

Translation or Not:no

Date of Publication:2019-04-01

Date of Publication:2019-04-01