Experiments on trapping ytterbium atoms in optical lattices

Zhou, Min; Chen, Ning; Zhang, Xiaohang; Huang, Liangyu; Yao, Maofei; Tian, Jie; Gao, Qi; Jiang, Hailing; Tang, Hai-Yao; Xu, Xiaojun

doi:10.1088/1674-1056/22/10/103701

Cited by 11 publications

(9 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The spectrum is logged by the normalized detection with the repumping lasers on the transition at 649 nm and the transition at 770 nm. More details and the experimental setup can be found in our previous works 27 , 39 – 41 . The maximum of the lattice laser power is about 2.5 W and the power is stabilized by using an acousto-optic modulator (AOM).…”

Section: Methodsmentioning

confidence: 99%

Carrier thermometry of cold ytterbium atoms in an optical lattice clock

Han

Zhou

Zhang

et al. 2018

Sci Rep

Self Cite

View full text Add to dashboard Cite

The ultracold atomic gas serving as the quantum reference is a key part of an optical lattice clock, and the temperature of atoms in the optical lattice affects the uncertainty and instability of the optical lattice clocks. Since the carrier spectrum of the clock transition in the lattices reflects the thermal dynamics of cold atoms, the temperature of atoms can be extracted from the carrier spectrum in a non-magic wavelength lattice of ytterbium optical clocks. Furthermore, the temperatures obtained from the carrier spectra are in good agreement with the results obtained by the time-of-flight method and thermometry based on the sideband spectrum. In addition, the heating effects caused by the lattice laser are studied on the basis of the sample temperatures.

show abstract

Section: Methodsmentioning

confidence: 99%

Carrier thermometry of cold ytterbium atoms in an optical lattice clock

Han

Zhou

Zhang

et al. 2018

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…Recently the interest has arisen from the problem of all-optical trapping of ions, i.e., from ion trapping without applying radiofrequency or electrostatic and magnetostatic fields. [3,4] Unfortunately, the shallow depth ∆W d of monochromatic dipole trap (ODT) or optical lattice (OL) can be a serious obstacle for their use in the trapping of a few ions due to the Coulomb repulsion of ions (although ODT and OL are quite successfully used for all-optical trapping of neutral atoms [2,[5][6][7] ).…”

Section: Introductionmentioning

confidence: 99%

Conditions for formation and trapping of the two-ion Coulomb cluster in the dissipative optical superlattice

Krasnov¹

2015

Chinese Phys. B

View full text Add to dashboard Cite

Conditions have been studied under which a polychromatic optical superlattice can form and trap the Coulomb cluster of two strongly interacting ions. In our previous work (Krasnov I V and Kamenshchikov L P 2014 Opt. Comm. 312 192) this new all-optical method of obtaining and confining the Coulomb clusters was demonstrated by numerical simulations for special values of the optical superlattice parameters and in the case of Yb ions. In the present paper the conditions are explicitly formulated, under which the long-lived two-ion cluster in the superlattice cell is formed. The peculiarity of these conditions is the renormalization of the ion-ion Coulomb interaction. Notably, the renormalized Coulomb force is determined by the effective charge which depends on the light field parameters and can strongly differ from the "bare" ion charge. This result can be accounted for by the combined manifestation of the quantum fluctuations of optical forces, nonlinear dependence of these forces on the velocity, and non-Maxwellian (Tsallis type) velocity distribution of the ions in the optical superlattice. Explicit analytical formulas are also obtained for the parameters of the optical two-ion cluster.

show abstract

“…In the past several years, particle manipulations have attracted much attention because of their wide applications in physics, chemistry, and biology. [1][2][3] Especially, optical trapping by using cylindrical vector beams (CVBs) is demonstrated theoretically and experimentally for their better performances than those of traditional optical trapping with scalar beams. Zhan [4,5] first theoretically studied the optical trapping of dielectric and metallic particles by using the radially polarized beams.…”

Section: Introductionmentioning

confidence: 99%

Multiple optical trapping based on high-order axially symmetric polarized beams

Zhou¹,

Zhu

2015

Chinese Phys. B

View full text Add to dashboard Cite

Multiple optical trapping with high-order axially symmetric polarized beams (ASPBs) is studied theoretically, and a scheme based on far-field optical trapping with ASPBs is first proposed. The focused fields and the corresponding gradient forces on Rayleigh dielectric particles are calculated for the scheme. The calculated results indicate that multiple ultra-small focused spots can be achieved, and multiple nanometer-sized particles with refractive index higher than the ambient can be trapped simultaneously near these focused spots, which are expected to enhance the capabilities of traditional optical trapping systems and provide a solution for massive multiple optical trapping of nanometer-sized particles.

show abstract

Experiments on trapping ytterbium atoms in optical lattices

Cited by 11 publications

References 23 publications

Carrier thermometry of cold ytterbium atoms in an optical lattice clock

Carrier thermometry of cold ytterbium atoms in an optical lattice clock

Conditions for formation and trapping of the two-ion Coulomb cluster in the dissipative optical superlattice

Multiple optical trapping based on high-order axially symmetric polarized beams

Contact Info

Product

Resources

About