A5107987249- Cold Atom Physics and Bose-Einstein Condensates
- Advanced Frequency and Time Standards
- Gyrotron and Vacuum Electronics Research
- Energy Harvesting in Wireless Networks
- Atomic and Molecular Physics
- Particle accelerators and beam dynamics
- Atomic and Subatomic Physics Research
Chinese Academy of Sciences
2017-2018
University of Chinese Academy of Sciences
2017-2018
Wuhan Institute of Physics and Mathematics
2017-2018
Northwest Institute of Nuclear Technology
2009
In this paper, we present a detailed method for rapidly and effectively loading single 40Ca+ ion into miniature linear Paul trap. Calcium atoms are generated by laser ablation, the is loaded specific isotopes selected two-step photo-ionization method. Compared to traditional in which typically emitted from resistively heated oven, advantages of ablation that it can be precisely controlled, avoid problem fluxed calcium deposition on trap electrodes, restricts generation dark ions, influence...
We present for the first time a direct measurement of lifetime ratio between and metastable states in single trapped 40Ca+. A high-efficiency quantum state detection technique is adopted to monitor jumps, high precision synchronized sequence used laser control study rule spontaneous decay. Our method shows that constant irrelevant dwell time; it only determined by decay probabilities two at one random time, independent lifetimes states. Systematic errors such as collisions with background...
A novel type of coaxial vircator with 3 anodes is proposed.The advantages on high power microwave generation tested by particle-in-cell simulation and theoretical analysis model set up as well.The tri-anode behaves a very stable frequency in the pulse duration.In vircator, injecting electron beam well premodulated first anode cavity forms an inerratic bunch-dispersion mechanism second cavity; energy-loss electrons penetrate through third absorbed dumping locates centre electrode, which helps...