Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Lingxiang He"'
Autor:
Ang Zhang, Congcong Tian, Qiang Zhu, Bing Wang, Dezhi Xiong, Zhuanxian Xiong, Lingxiang He, Baolong Lyu
Publikováno v:
Chinese Physics B. 32:020601
We present a precise measurement of 171Yb magnetic constants for 1 S 0–3 P 0 clock transition. The background magnetic field is firstly compensated to < 1 mGs (1 Gs = 10−4 T) through measuring the splitting of two π transitins of 171Yb clock tra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1585eef2ab2b76b33f4daf969f67e1dc
https://doi.org/10.1088/1674-1056/aca14e
https://doi.org/10.1088/1674-1056/aca14e
Autor:
Ang Zhang, Zhuanxian Xiong, Xiaotong Chen, Yanyi Jiang, Jinqi Wang, Congcong Tian, Qiang Zhu, Bing Wang, Dezhi Xiong, Lingxiang He, Longsheng Ma, Baolong Lyu
Publikováno v:
Metrologia. 59:065009
We have built an ytterbium optical lattice clock with improvements over our previous version. An in-vacuum blackbody radiation (BBR) shield is employed to provide a well characterized BBR environment. The effective temperature felt by the atoms can b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31fd65a72e7708fb82621d7bff265388
https://doi.org/10.1088/1681-7575/ac99e4
https://doi.org/10.1088/1681-7575/ac99e4
Publikováno v:
Wuhan University Journal of Natural Sciences. 24:423-426
In order to apply the frequency comparison among the different optical clocks, transportable optical clocks (TOCs) is suggested as a valuable tool. For transportable clocks, the key technique is how to lock the lasers involved in the whole system. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06396ddbd0ac44a6d6d200c9bc7eeafb
https://doi.org/10.1007/s11859-019-1416-4
https://doi.org/10.1007/s11859-019-1416-4
Publikováno v:
Wuhan University Journal of Natural Sciences. 24:427-430
In order to suppress the blackbody radiation shift of ytterbium (Yb) lattice clock, we adopt the idea of the synthetic frequency by means of the two clock transitions which correspond to the static values of the scalar and tensor dipole polarizabilit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::533155697d8e0a5fd54011fc0b7733d9
https://doi.org/10.1007/s11859-019-1417-3
https://doi.org/10.1007/s11859-019-1417-3
Publikováno v:
Wuhan University Journal of Natural Sciences. 23:51-55
We report laser frequency stabilization with modulation transfer spectroscopy (MTS) on 85Rb atoms. With both PZT (piezo-electric transducer) slow-loop feedback and current fastloop feedback to the laser head, we get a linewidth narrowing less than 5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f561431457e89a6bbcec05fc53b045c9
https://doi.org/10.1007/s11859-018-1293-2
https://doi.org/10.1007/s11859-018-1293-2
Autor:
Congcong Tian, Ang Zhang, Lingxiang He, Jin-Qi Wang, Bing Wang, Qiang Zhu, Zhuan-Xian Xiong, Bao-Long Lyu, Dezhi Xiong
Publikováno v:
Metrologia. 58:035005
The Stark shift due to blackbody radiation (BBR) is a key obstacle limiting the frequency uncertainty of optical lattice clocks. A well-characterized BBR environment is necessary to know exactly the temperature felt by the cold atoms. In our ytterbiu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46322707c014cebe651f7a1919432acd
https://doi.org/10.1088/1681-7575/abeec3
https://doi.org/10.1088/1681-7575/abeec3
Publikováno v:
2018 19th International Conference on Electronic Packaging Technology (ICEPT).
This work designed a micro-hotplate for micro-electromechanical systems (MEMS) based gas sensor, in which the heating electrode and the test electrode are placed on the same plane. The micro-hotplate with four pins was optimized the finite element an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00e73815cd8d37137a46b74ef77a20a6
https://doi.org/10.1109/icept.2018.8480572
https://doi.org/10.1109/icept.2018.8480572
Publikováno v:
Chinese Optics Letters. 12:021401-21404
The laser cooling of ytterbium (Yb) atoms needs a 399-nm laser which operates on the strong S-1(0)-P-1(1) transition and can be locked at the desired frequencies for different Yb isotopes. We demonstrate a frequency locking method using the fluoresce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a889e9f9b4e8b802f8fb6648026bb023
https://doi.org/10.3788/col201412.021401
https://doi.org/10.3788/col201412.021401
Publikováno v:
Chinese Physics B. 27:053201
We report a clock transition spectrum approach, which is used to calibrate the zero-crossing temperature and frequency drift of an ultralow expansion (ULE) cavity with a Hertz level resolution. With this approach, the linear and nonlinear drifts of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4951ec948c9b1bebdb913cad1c8f46ad
https://doi.org/10.1088/1674-1056/27/5/053201
https://doi.org/10.1088/1674-1056/27/5/053201
Autor:
Bao-Long Lyu, Zhuan-Xian Xiong, Xi Zhang, Jin-Qi Wang, Lingxiang He, Kun-Liang Jiang, Hui Liu, Qiang Zhu
Publikováno v:
Chinese Physics Letters. 34:020601
We report the realization of closed-loop operation of an optical lattice clock based on 171Yb atoms. We interrogate the clock transition using single Rabi pulses of 578 nm laser light. The two π-transitions from ground states are alternatively inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc49bbd9715da7465a0eb9370d085cae
https://doi.org/10.1088/0256-307x/34/2/020601
https://doi.org/10.1088/0256-307x/34/2/020601