A CMOS Molecular Clock Probing 231.061-GHz Rotational Line of OCS with Sub-PPB Long-Term Stability and 66-MW DC Power
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2018_Cheng_VLSI_Molecular_Clock.pdf
Description
Accepted version
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1.11 MB
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Checksum (MD5)
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Author(s)
Wang, Cheng
Yi, Xiang
Kim, Mina
Zhang, Yaqing
Han, Ruonan
Date Issued
June 2018
Publisher
IEEE
Citation
Wang, Cheng, Yi, Xiang, Kim, Mina, Zhang, Yaqing and Han, Ruonan. 2018. "A CMOS Molecular Clock Probing 231.061-GHz Rotational Line of OCS with Sub-PPB Long-Term Stability and 66-MW DC Power."
Version
Author's final manuscript
Abstract
© 2018 IEEE. Recent progress of on-chip spectroscopic systems enables a new set of highly-stable frequency references (i.e. clocks) with low cost, power and volume. It is based on the rotational spectrum of gaseous molecules in sub-THz regime, a physical mechanism alternative to that in traditional atomic clocks. This scheme also enables fast start-up operation and robustness against mechanical vibration and external electromagnetic fields. This paper demonstrates the first chip-scale molecular clock in 65nm CMOS which probes the 231.061GHz spectral line of Carbonyl Sulfide ( 16 O 12 C 32 S). The clock consumes only 66mW DC power and has a measured Allan deviation of 3.8×10- 10 with an averaging time of τ=10 3 s.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Microsystems Technology Laboratories
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Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1109/vlsic.2018.8502271
