【摘 要】
：
We propose and demonstrate an alternative method for spectral filtering and frequency stabilization of both 780-nm and 960-nm lasers using a high-finesse length
【机 构】
：
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Innovation Academy for P
论文部分内容阅读
We propose and demonstrate an alternative method for spectral filtering and frequency stabilization of both 780-nm and 960-nm lasers using a high-finesse length-tunable cavity (HFLTC).Firstly,the length of HFLTC is stabilized to a com-mercial frequency reference.Then,the two lasers are locked to this HFLTC using the Pound-Drever-Hall (PDH) method which can narrow the linewidths and stabilize the frequencies of both lasers simultaneously.Finally,the transmitted lasers of HFLTC with each power up to about 100 μW,which act as seed lasers,are amplified using the injection locking method for single-atom Rydberg excitation.The linewidths of obtained lasers are narrowed to be less than 1 kHz,meanwhile the obtained lasers' phase noise around 750 kHz are suppressed about 30 dB.With the spectrally filtered lasers,we demonstrate a Rabi oscillation between the ground state and Rydberg state of single-atoms in an optical trap tweezer with a decay time of (67 ± 37) μs,which is almost not affected by laser phase noise.We found that the maximum short-term laser frequency fluctuation of a single excitation lasers is at ～ 3.3 kHz and the maximum long-term laser frequency drift of a single laser is ～ 46 kHz during one month.Our work develops a stable and repeatable method to provide multiple laser sources of ultra-low phase noise,narrow linewidth,and excellent frequency stability,which is essential for high precision atomic experiments,such as neutral atom quantum computing,quantum simulation,quantum metrology,and so on.
其他文献
Caesium atomic fountain clock is a primary frequency standard,which realizes the duration of second.Its performance is mostly dominated by the frequency accurac
By using first-principles calculation,we study the properties of h-BN/BC3 heterostructure and the effects of external electric fields and strains on its electro
We study the steady optical response of a square lattice in which all trapped atoms are driven by a probe and a coupling fields into the ladder configuration of
The development of blue semiconductor light-emitting diodes (LEDs) has produced potential applications for Pr-doped materials that can absorb blue light,especia
Using the structure search of particle swarm optimization (PSO) algorithm combined with density functional theory(DFT),we conduct a systematic two-dimensional (
We propose a physical model of estimating noise and asymmetry brought by high isolation Bi-directional erbium-doped fiber amplifiers (Bi-EDFAs),no spontaneous l
Ni-rich layered lithium transition metal oxides LiNixMnyCo2O2 (1-y-z ≥ 0.6) are promising candidates for cathode materials,but their practical applications are
In order to counteract the demagnetization caused by eddy current loss,widespread attention has been devoted to increasing the resistivity of permanent magnets.
We investigate the process of pulsed laser cooling using a self-constructed molecular dynamics simulation (MD-Simulation) program.We simulate the Doppler coolin
The single crystals of Nd0.5Pr0.5FeO3 were successfully grown by optical floating zone method.Room temperature x-ray diffraction and Laue photograph declared th