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Laser frequency offset-locking using electromagnetically induced transparency spectroscopy of (85)Rb in magnetic field 被引量:1
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作者 Han-Mu Wang Hong Cheng +3 位作者 Shan-Shan Zhang pei-pei xin Zi-Shan Xu Hong-Ping Liu 《Chinese Physics B》 SCIE EI CAS CSCD 2018年第9期296-300,共5页
We have experimentally offset-locked the frequencies of two lasers using electromagnetically induced transparency(EIT) spectroscopy of ^(85)Rb vapor with a buffer gas in a magnetic field at room temperature. The m... We have experimentally offset-locked the frequencies of two lasers using electromagnetically induced transparency(EIT) spectroscopy of ^(85)Rb vapor with a buffer gas in a magnetic field at room temperature. The magnetic field is generated by a permanent magnet mounted on a translation stage and its field magnitude can be varied by adjusting the distance between the magnet and Rb cell, which maps the laser locking frequency to the space position of the magnet. This frequency-space mapping technique provides an unambiguous daily laser frequency detuning operation with high accuracy.A repeatability of less than 0.5 MHz is achieved with the locking frequency detuned up to 184 MHz when the magnetic field varies from 0 up to 80 G. 展开更多
关键词 electromagnetically induced transparency offset-lock rubidium atom magnetic field
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A sensitive detection of high Rydberg atom with large dipole moment
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作者 Shan-Shan Zhang Hong Cheng +3 位作者 pei-pei xin Han-Mu Wang Zi-Shan Xu Hong-Ping Liu 《Chinese Physics B》 SCIE EI CAS CSCD 2018年第7期345-350,共6页
We report a sensitive detection of high Rydberg atom with large dipole moment utilizing its deflection near a pair of parallel cylindrical copper rods which are oppositely charged. When the low-field seeking state Ryd... We report a sensitive detection of high Rydberg atom with large dipole moment utilizing its deflection near a pair of parallel cylindrical copper rods which are oppositely charged. When the low-field seeking state Rydberg atoms fly across the gradient electric field formed by the pair of rods, they will be pushed away from the rods while the high-field seeking state ones will be attracted towards the rods. These atoms will form different patterns on an ion imaging system placed downwards at the end of the rods. The spatial distribution of the deflected atoms on the imaging system is also simulated, in good agreement with the experimental results, from which we can deduce the quantum state information of the excited atoms. This state resolvable Rydberg atom detection can be used for the dynamics research of the dipole-dipole interaction between atoms with large dipole moments. 展开更多
关键词 Rydberg Stark state sodium atom DEFLECTION dipole moment
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