Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Wang Nuanrang"'
Autor:
Zhang Xu, Chen Xing, Deng Liu, Xue Xiaobo, Zhang Zhenwei, Zhao Huan, Li Zhang, Wang Nuanrang, Yang Renfu
Publikováno v:
2018 IEEE International Frequency Control Symposium (IFCS).
Since the instability and uncertainty of optical frequency standards have achieved the level of 10−18, and since the locking time of these frequency standards has become much longer, it is appropriate and necessary to build more practical optical f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::857e8818d3e6c367421d23736b29e4f5
https://doi.org/10.1109/fcs.2018.8597454
https://doi.org/10.1109/fcs.2018.8597454
Publikováno v:
2018 European Frequency and Time Forum (EFTF).
The mercury ion trapped microwave frequency standard has the potential applications for the future satellite, deep space explorations, time keeping and broadcasting for its great advantages in the total volume, stability and lifetime. The high freque
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9b62677ff932e6b9be8afed1a468b77
https://doi.org/10.1109/eftf.2018.8408995
https://doi.org/10.1109/eftf.2018.8408995
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 57:583-586
In order to reduce the size and weight of the hydrogen maser atomic clocks, some useful attempts and related research results about sapphire loaded cylindrical cavity for the hydrogen maser were reported in the Beijing Institute of Radio Metrology an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe884b002c640191de6910917f7ffe00
https://doi.org/10.1109/tuffc.2010.1450
https://doi.org/10.1109/tuffc.2010.1450
Publikováno v:
2015 12th IEEE International Conference on Electronic Measurement & Instruments (ICEMI).
Ka-band compact pyramidal horn antenna (PHA) array is an important research topics to improve the image quality of millimeter wave active imaging system. In this paper, PHA array with WR28 metal waveguide direct feeding is specially designed based on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c816899bae62b90657607bb782e080bc
https://doi.org/10.1109/icemi.2015.7494332
https://doi.org/10.1109/icemi.2015.7494332
Autor:
Wang Nuanrang, Feng Keming, Zhang Zhenwei, Yang Renfu, Shi Fan, Cui Yongshun, Zhao Huan, Feng Nian
Publikováno v:
SPIE Proceedings.
In this work, a portable atomic frequency standard based on coherent population trapping is designed and demonstrated. To achieve a portable prototype, in the system, a single transverse mode 795nm VCSEL modulated by a 3.4GHz RF source is used as a p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9438468cd063ff2d03b65dd573cce4ab
https://doi.org/10.1117/12.2180549
https://doi.org/10.1117/12.2180549
Publikováno v:
Chinese Physics Letters. 33:104203
We investigate spin squeezing effects of trapped ions in an off-resonance optical potential system using the arbitrary range spin—spin interaction and transverse field model. The collective spin noises at any time are analyzed exactly. The general
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5b4e63b7e819918ee0d621829a605fd
https://doi.org/10.1088/0256-307x/33/10/104203
https://doi.org/10.1088/0256-307x/33/10/104203
Publikováno v:
IEEE 2011 10th International Conference on Electronic Measurement & Instruments.
To design a superconducting cavity with high quality factor for frequency standard, the parameters which affect ability of the cavity are all achieved through theory analysis and computer program. A curve through which we can assure the temperature f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4972c648a1cd9e80a5523ce97aee25c
https://doi.org/10.1109/icemi.2011.6037727
https://doi.org/10.1109/icemi.2011.6037727
Publikováno v:
2010 International Conference on Microwave and Millimeter Wave Technology.
To obtain miniaturization of a sapphire loaded cavity in hydrogen maser, a method is brought forward to design a compact microwave cavity. A cavity with high Q and small size sapphire is achieved through analyzing relationship between parameters and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f06eb3fe76d664292def5c80b1f8194
https://doi.org/10.1109/icmmt.2010.5524910
https://doi.org/10.1109/icmmt.2010.5524910
Publikováno v:
IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 57(3)
The previous compact hydrogen maser with sapphire microwave cavity in the Beijing Institute of Radio Metrology and Measurement is not suitable for a space application in navigation systems since a bit large volume and weight. In order to reduce the t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9dde1f8f8eeca5173bd442b04fee3f7
https://pubmed.ncbi.nlm.nih.gov/20211774
https://pubmed.ncbi.nlm.nih.gov/20211774
Autor:
Shi Fan, Wang Nuanrang, Nian Feng, Zhao Huan, Zhang Zhenwei, Cui Yongshun, Feng Keming, Zhang Shengkang, Yang Renfu
Publikováno v:
Chinese Optics Letters. 12:S22205
We present the mechanism of coherent population trapping (CPT) atom clock. The optical system is designed for a portable CPT atom clock. In this system, single transverse mode vertical-cavity surface-emitting laser is used as a miniature pump laser.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c0711f851c5ba44cf607dd770fe6d92
https://doi.org/10.3788/col201412.s22205
https://doi.org/10.3788/col201412.s22205