Chip-Scale Terahertz Carbonyl Sulfide Clock: An Overview and Recent Studies on Long-Term Frequency Stability of OCS Transitions

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

Journal:IEEE Transactions on Terahertz Science and Technology (TTST)

Place of Publication:USA

Key Words:Carbonyl sulfide (OCS), CMOS, frequency stability, molecular clock, rotational spectroscopy

Abstract:This paper reviews the recent innovations of a miniature time-keeping device with high affordability: chip-scale molecular clock. It is based on the recent research progress of high-precision terahertz (THz) rotational spectrometers, especially those using CMOS integrated circuit technologies. The clock probes the rotational modes of carbonyl sulfide (16 O12 C32 S) molecule gas and then calibrates its MHz output according to the measured terahertz transition frequency of OCS. In contrast to cesium/rubidium atomic clocks, the THz OCS clock has fully electronic operations and, hence, a significa

Note:https://ieeexplore.ieee.org/document/8720018

All the Authors:Cheng Wang,Zhi Hu

First Author:Mina Kim

Indexed by:Journal

Correspondence Author:Ruonan Han

Document Code:10.1109/TTHZ.2019.2918436

Discipline:Engineering

First-Level Discipline:Electronic science and technology

Volume:9

Issue:4

Page Number:349 - 363

Translation or Not:no

Date of Publication:2019-07-01

Date of Publication:2019-07-01