Chip-Scale Molecular Clock
Chip-Scale Molecular Clock
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芯片级分子钟
DOI:
10.1109/jssc.2018.2880920
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发表时间:
2019
影响因子:
5.4
通讯作者:
Han, Ruonan
中科院分区:
文献类型:
--
作者:
Wang, Cheng;Yi, Xiang;Mawdsley, James;Kim, Mina;Hu, Zhi;Zhang, Yaqing;Perkins, Bradford;Han, Ruonan
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 small size, power, and cost. This paper provides the architectural and chip-design details of the first proof-of-concept molecular clock using a 65-nm CMOS bulk technology. Using a 231.061-GHz phase-locked loop (PLL) with frequency-shift keying (FSK) modulation and a sub-THz FET detector with integrated lock-in function, the chip probes the accurate transition frequency of carbonyl sulfide (OCS) gas inside a single-mode waveguide, and accordingly adjusts the 80-MHz output of a crystal oscillator. The clock consumes only 66 mW of dc power and has a measured Allan deviation of 3.8 × 10-10at an averaging time of τ = 1000 s.
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影响因子:
5.4
作者:
Wang, Cheng;Han, Ruonan
通讯作者:
Han, Ruonan
DOI:
10.1063/1.3696895
发表时间:
2012
期刊:
The Journal of chemical physics
影响因子:
--
作者:
M. A. Koshelev;M. Tretyakov;F. Rohart;J. Bouanich
通讯作者:
J. Bouanich
DOI:
10.1109/isscc.2014.6757426
发表时间:
2014
期刊:
2014 IEEE International Solid-State Circuits Conference Digest of Technical Papers (ISSCC)
影响因子:
--
作者:
Pei;Z. Wang;O. Momeni;P. Heydari
通讯作者:
P. Heydari
DOI:
10.1109/isscc.2011.5746214
发表时间:
2011
期刊:
2011 IEEE International Solid-State Circuits Conference
影响因子:
--
作者:
D. Ruffieux;M. Contaldo;J. Haesler;S. Lecomte
通讯作者:
S. Lecomte
影响因子:
4.3
作者:
A. Maki
通讯作者:
A. Maki